W78L365A24PL全新原装原理图各脚功能电路原理芯片引脚定义-中国IC网-芯三七

W78LE365/W78L365A Data Sheet

8-BIT MICROCONTROLLER

Table of Contents-

1.

2.

3.

4.

5.

GENERAL DESCRIPTION ......................................................................................................... 3

FEATURES................................................................................................................................. 3

PIN CONFIGURATIONS ............................................................................................................ 4

PIN DESCRIPTION..................................................................................................................... 5

FUNCTIONAL DESCRIPTION ................................................................................................... 6

5.1

5.2

RAM................................................................................................................................ 6

Timers 0, 1 and 2............................................................................................................ 7

5.2.1 Timer 2 Output .................................................................................................................7

5.3

5.4

Clock............................................................................................................................... 7

5.3.1 Crystal Oscillator ..............................................................................................................7

5.3.2 External Clock ..................................................................................................................7

Power Management........................................................................................................ 8

5.4.1 Idle Mode..........................................................................................................................8

5.4.2 Power-down Mode............................................................................................................8

5.4.3 Reduce EMI Emission ......................................................................................................8

5.5

5.6

Reset............................................................................................................................... 9

5.5.1 W78L365A Special Function Registers (SFRs) and Reset Values...................................9

Port 4 ............................................................................................................................ 10

5.6.1 Port Options Register .....................................................................................................10

5.6.2 INT2 /INT3 ..................................................................................................................10

5.6.3 Port 4 Base Address Registers ......................................................................................13

Pulse Width Modulated Outputs (PWM)....................................................................... 14

Watchdog Timer ........................................................................................................... 17

In-System Programming (ISP) Mode............................................................................ 19

5.9.1 In-System Programming Control Register (CHPCON) ...................................................20

5.7

5.8

5.9

5.10 Software Reset ............................................................................................................. 21

5.11 H/W Reboot Mode (Boot from LDROM)....................................................................... 21

SECURITY................................................................................................................................ 24

6.

7.

6.1

6.2

6.3

6.4

Lock Bit ......................................................................................................................... 24

MOVC Inhibit................................................................................................................. 24

Encryption..................................................................................................................... 25

Oscillator Control .......................................................................................................... 25

ELECTRICAL CHARACTERISTICS......................................................................................... 26

Publication Release Date: January 10, 2007

- 1 -

Revision A7

W78LE365/W78L365A

7.1

7.2

7.3

Absolute Maximum Ratings.......................................................................................... 26

D.C. Characteristics...................................................................................................... 26

A.C. Characteristics...................................................................................................... 28

8.

TIMING WAVEFORMS............................................................................................................. 29

8.1

8.2

8.3

8.4

Program Fetch Cycle.................................................................................................... 29

Data Read Cycle........................................................................................................... 30

Data Write Cycle........................................................................................................... 31

Port Access Cycle......................................................................................................... 32

9.

TYPICAL APPLICATION CIRCUIT........................................................................................... 33

9.1

9.2

External Program Memory and Crystal ........................................................................ 33

Expanded External Data Memory and Oscillator ......................................................... 34

10.

PACKAGE DIMENSIONS......................................................................................................... 35

10.1 40-pin DIP..................................................................................................................... 35

10.2 44-pin PLCC ................................................................................................................. 35

10.3 44-pin PQFP ................................................................................................................. 36

10.4 48-pin LQFP.................................................................................................................. 36

APPLICATION NOTE ............................................................................................................... 37

11.1 In-system Programming Software Examples ............................................................... 37

REVISION HISTORY................................................................................................................ 42

11.

12.

- 2 -

W78LE365/W78L365A

1. GENERAL DESCRIPTION

The W78L365A is an 8-bit microcontroller which has an in-system programmable Flash EPROM for

firmware updating. The instruction set of the W78L365A is fully compatible with the standard 8052.

The W78L365A contains a 64K bytes of main ROM and a 4K bytes of auxiliary ROM which allows the

contents of the 64KB main ROM to be updated by the loader program located at the 4KB auxiliary

ROM; 256+1K bytes of on-chip RAM; four 8-bit bi-directional and bit-addressable I/O ports; an

additional 4-bit port P4; three 16-bit timer/counters; a serial port. These peripherals are supported by a

eight sources two-level interrupt capability. To facilitate programming and verification, the ROM inside

the W78L365A allows the program memory to be programmed and read electronically. Once the code

is confirmed, the user can protect the code for security.

The W78L365A microcontroller has two power reduction modes, idle mode and power-down mode,

both of which are software selectable. The idle mode turns off the processor clock but allows for

continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power

consumption. The external clock can be stopped at any time and in any state without affecting the

processor.

2. FEATURES

•

Fully static design 8-bit CMOS microcontroller

64K bytes of in-system programmable Flash EPROM for Application Program (APROM)

4K bytes of auxiliary ROM for Loader Program (LDROM)

256+1K bytes of on-chip RAM. (Including 1K bytes of AUX-RAM, software selectable)

Four 8-bit bi-directional ports

One 4-bit multipurpose programmable port (I/O, interrupt, Chip select function)

Three 16-bit timer/counters

One full duplex serial port

Watchdog timer

Software Reset

P1.0 T2 programmable clock out

Eight-sources, two-level interrupt capability

Up to 20 MHz

Built-in power management

Code protection

Packaged in

− Lead Free (RoHS) DIP 40:

W78L365A24DL

− Lead Free (RoHS) PLCC 44: W78L365A24PL

− Lead Free (RoHS) QFP 44: W78L365A24FL

− Lead Free (RoHS) LQFP 48: W78L365A24LL

Publication Release Date: January 10, 2007

Revision A7

- 3 -

W78LE365/W78L365A

3. PIN CONFIGURATIONS

44-pin PLCC

/

T

2

E

X

,

I

40-pin DIP

A

D

1

,

A

D

2

,

A

D

3

,

N

T

3

,

A

D

0

,

T

2

,

P

1

.

P

1

.

P

0

.

P

0

.

P

0

.

P

1

.

P

1

.

P

1

.

P

0

.

P

4

.

1

VDD

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

T2, P1.0

T2EX, P1.1

V

D

2

3

4

5

6

7

8

9

P0.0, AD0

P0.1, AD1

P0.2, AD2

P0.3, AD3

P0.4, AD4

P0.5, AD5

P0.6, AD6

P0.7, AD7

EA

ALE

PSEN

P2.7, A15

P2.6, A14

P2.5, A13

P2.4, A12

P2.3, A11

P2.2, A10

P2.1, A9

4

3

2

1

0

1

2

3

2

0

P1.2

P1.3

40

39

6

5

4

3

2

1

44 43 42

41

P1.4

P1.5

P1.6

P1.7

7

8

9

P1.5

P1.6

P1.7

RST

P0.4, AD4

P0.5, AD5

P0.6, AD6

P0.7, AD7

EA

P4.1

ALE

PSEN

P2.7, A15

38

37

36

35

34

33

32

31

10

11

12

13

14

15

RST

RXD, P3.0

INT2, P4.3

TXD, P3.1

INT0, P3.2

INT1, P3.3

T0, P3.4

10

11

12

13

14

15

16

17

18

19

20

RXD, P3.0

TXD, P3.1

INT0, P3.2

INT1, P3.3

T0, P3.4

T1, P3.5

30

16

17

P2.6, A14

P2.5, A13

29

T1, P3.5

WR, P3.6

18 19 20 21 22 23 24 25 26 27 28

RD, P3.7

XTAL2

XTAL1

VSS

P

3

.

P

3

.

X

T

A

L

2

X

T

A

L

1

V

S

P

2

.

P

2

.

P

2

.

P

2

.

P

2

.

P

4

.

6

,

7

,

0

,

1

,

2

,

3

,

4

,

0

P2.0, A8

/

A

8

A

9

A

1

A

1

2

A

1

0

W R

R

D

44-pin PQFP

/

T

2

E

X

,

I

48-pin LQFP

A

D

1

,

A

D

2

,

A

D

3

,

A

D

0

,

N

T

3

,

T

2

,

P

1

.

P

1

.

P

1

.

P

1

.

P

0

.

P

0

.

P

0

.

P

0

.

P

4

.

1

.

V

D

4

3

2

1

0

1

2

3

0

2

P1.5

P1.6

P1.7

RST

P3.0

P4.3

P3.1

P3.2

P3.3

P3.4

P3.5

NC

1

36

35

34

33

32

31

30

29

28

27

26

25

NC

2

P0.4

P0.5

P0.6

P0.7

EA

34

43 42 41 40 39 38 37 36 35

44

1

2

3

4

5

6

7

8

9

33

P0.4, AD4

P0.5, AD5

P0.6, AD6

P0.7, AD7

EA

P4.1

ALE

PSEN

P2.7, A15

P2.6, A14

P2.5, A13

P1.5

P1.6

P1.7

3

32

31

30

29

28

27

26

25

4

5

RST

6

RXD, P3.0

INT2, P4.3

TXD, P3.1

INT0, P3.2

INT1, P3.3

T0, P3.4

7

P4.1

ALE

PSEN

P2.7

P2.6

P2.5

8

9

10

11

12

10

11

24

23

T1, P3.5

12 13 14 15 16 17 18 19 20 21 22

P

3

.

P

3

.

X

T

A

L

2

X

T

A

L

1

V

S

P

2

.

P

2

.

P

2

.

P

2

.

P

2

.

P

4

.

6

,

7

,

0

,

1

,

3

,

4

,

2

,

0

/

A

8

A

9

A

1

A

1

2

A

1

0

W R

R

D

- 4 -

W78LE365/W78L365A

4. PIN DESCRIPTION

SYMBOL

TYPE

DESCRIPTIONS

EXTERNAL ACCESS ENABLE: This pin forces the processor to execute the

external ROM. The ROM address and data will not be presented on the bus if

I

EA

the EA pin is high.

PROGRAM STORE ENABLE: PSEN enables the external ROM data in the

Port 0 address/data bus. When internal ROM access is performed, no PSEN

strobe signal outputs originate from this pin.

O H

PSEN

ALE

ADDRESS LATCH ENABLE: ALE is used to enable the address latch that

O H separates the address from the data on Port 0. ALE runs at 1/6th of the

oscillator frequency.

RESET: A high on this pin for two machine cycles while the oscillator is

RST

I L

running resets the device.

CRYSTAL 1: This is the crystal oscillator input. This pin may be driven by an

XTAL1

I

external clock.

XTAL2

VSS

O

I

CRYSTAL 2: This is the crystal oscillator output. It is the inversion of XTAL1.

GROUND: ground potential.

VDD

I

POWER SUPPLY: Supply voltage for operation.

I/O D PORT 0: Function is the same as that of standard 8052.

I/O H PORT 1: Function is the same as that of standard 8052.

PORT 2: Port 2 is a bi-directional I/O port with internal pull-ups. This port also

P0.0−P0.7

P1.0−P1.7

provides the upper address bits for accesses to external memory. The P2.6

I/O H

P2.0−P2.7

and P2.7 also provide the alternate function REBOOT which is H/W reboot

from LD flash.

I/O H PORT 3: Function is the same as that of the standard 8052.

P3.0−P3.7

P4.0−P4.7

PORT 4: A bi-directional I/O. The P4.3 also provide the alternate function

I/O H

REBOOT which is H/W reboot from LD flash.

* Note: TYPE I: input, O: output, I/O: bi-directional, H: pull-high, L: pull-low, D: open drain

Publication Release Date: January 10, 2007

Revision A7

- 5 -

W78LE365/W78L365A

5. FUNCTIONAL DESCRIPTION

The W78L365A architecture consists of a core controller surrounded by various registers, four general

purpose I/O ports, one special purpose programmable 4-bits I/O port, 256+1K bytes of RAM, three

timer/counters, a serial port. The processor supports 111 different opcodes and references both a 64K

program address space and a 64K data storage space.

5.1

RAM

The internal data RAM in the W78L365A is 256+1K bytes. It is divided into two banks: 256 bytes of

scratchpad RAM and 1K bytes of AUX-RAM. These RAMs are addressed by different ways.

•

RAM 0H−7FH can be addressed directly and indirectly as the same as in 8051. Address pointers

are R0 and R1 of the selected register bank.

RAM 80H−FFH can only be addressed indirectly as the same as in 8051. Address pointers are

R0, R1 of the selected registers bank.

AUX-RAM 0H−3FFH is addressed indirectly as the same way to access external data memory

with the MOVX instruction. Address pointer are R0 and R1 of the selected register bank and

DPTR register. An access to external data memory locations higher than 3FFH will be performed

with the MOVX instruction in the same way as in the 8051. The AUX-RAM is enable after a reset.

Setting the bit 4 in CHPCON register will enable the access to AUX-RAM. When executing from

internal program memory, an access to AUX-RAM will not affect the Ports P0, P2, WR and RD.

Example:

CHPENR

CHPCON

XRAMAH

REG

F6H

BFH

A1H

MOV

ORL

MOV

MOVX @R0, A

MOV

CHPENR, #87H

CHPENR, #59H

CHPCON, #00010000B ; enable AUX-RAM

CHPENR, #00H

XRAMAH, #01H

R0, #23H

; internal high address

A, #55H

; Write 55h data to 0123h AUX-RAM address.

; Read data from 02FFh AUX-RAM address.

XRAMAH, #02H

R1, #FFH

MOVX

MOV

A, @R1

DPTR, #0134H

A, #78H

MOVX

MOV

MOVX

@DPTR,A

DPTR, #7FFFH

A, @DPRT

; Write 78h data to 0134h AUX-RAM address.

; Read data from the external 7FFFh address SRAM

- 6 -

W78LE365/W78L365A

5.2

Timers 0, 1 and 2

Timers 0, 1, and 2 each consist of two 8-bit data registers. These are called TL0 and TH0 for Timer 0,

TL1 and TH1 for Timer 1, and TL2 and TH2 for Timer 2. The TCON and TMOD registers provide

control functions for timers 0, 1. The T2CON register provides control functions for Timer 2. RCAP2H

and RCAP2L are used as reload/capture registers for Timer 2. The operations of Timer 0 and Timer 1

are the same as in the W78C51. Timer 2 is a 16-bit timer/counter that is configured and controlled by

the T2CON register. Like Timers 0 and 1, Timer 2 can operate as either an external event counter or

as an internal timer, depending on the setting of bit C/T2 in T2CON. Timer 2 has three operating

modes: capture, auto-reload, and baud rate generator. The clock speed at capture or auto-reload

mode is the same as that of Timers 0 and 1.

5.2.1 Timer 2 Output

If set T2OE (T2MOD.1) bit and clear C/T2 (T2CON.1) bit at auto-reload mode, P1.0 will be toggled

once overflow.

TIMER 2 Mode

Bit:

7

6

5

4

3

2

1

0

T2OE

Mnemonic: T2MOD

Address: C9H

T2OE: Enable this bit to toggle P1.0 pin while Timer2 has been overflowed.

5.3

Clock

The W78L365A is designed with either a crystal oscillator or an external clock. Internally, the clock is

divided by two before it is used by default. This makes the W78L365A relatively insensitive to duty

cycle variations in the clock.

5.3.1 Crystal Oscillator

The W78L365A incorporates a built-in crystal oscillator. To make the oscillator work, a crystal must be

connected across pins XTAL1 and XTAL2. In addition, a load capacitor must be connected from each

pin to ground.

5.3.2 External Clock

An external clock should be connected to pin XTAL1. Pin XTAL2 should be left unconnected. The

XTAL1 input is a CMOS-type input, as required by the crystal oscillator.

Publication Release Date: January 10, 2007

- 7 -

Revision A7

W78LE365/W78L365A

5.4

Power Management

5.4.1 Idle Mode

Setting the IDL bit in the PCON register enters the idle mode. In the idle mode, the internal clock to

the processor is stopped. The peripherals and the interrupt logic continue to be clocked. The

processor will exit idle mode when either an interrupt or a reset occurs.

5.4.2 Power-down Mode

When the PD bit in the PCON register is set, the processor enters the power-down mode. In this

mode all of the clocks are stopped, including the oscillator. To exit from power-down mode is by a

hardware reset or external interrupts INT0 to INT1 when enabled and set to level triggered.

5.4.3 Reduce EMI Emission

The W78L365A allows user to diminish the gain of on-chip oscillator amplifier by using programmer to

clear the B7 bit of security register. Once B7 is set to 0, a half of gain will be decreased. Care must be

taken if user attempts to diminish the gain of oscillator amplifier, reducing a half of gain may affect the

external crystal operating improperly at high frequency. The value of C1 and C2 may need some

adjustment while running at lower gain.

ALE OFF Function

Auxiliary Register

Bit:

7

-

6

-

5

-

4

-

3

-

2

-

1

-

0

ALEOFF

Mnemonic: AUXR

Address: 8EH

ALEOFF : Set this bit to disable ALE output.

- 8 -

W78LE365/W78L365A

5.5

Reset

The external RESET signal is sampled at S5P2. To take effect, it must be held high for at least two

machine cycles while the oscillator is running. An internal trigger circuit in the reset line is used to

deglitch the reset line when the W78L365A is used with an external RC network. The reset logic also

has a special glitch removal circuit that ignores glitches on the reset line. During reset, the ports are

initialized to FFH, the stack pointer to 07H, PCON (with the exception of bit 4) to 00H, and all of the

other SFR registers except SBUF to 00H. SBUF is not reset.

5.5.1 W78L365A Special Function Registers (SFRs) and Reset Values

F8

+B

00000000

CHPENR

00000000

F0

E8

E0

D8

D0

C8

C0

B8

B0

A8

A0

98

90

88

+ACC

00000000

+P4

PWMP

00000000

PWM0

00000000

PWM1

00000000

PWMCON1

00000000

PWM2

00000000

PWM3

00000000

11111111

+PSW

00000000

+T2CON

00000000

+XICON

00000000

+IP

T2MOD

00000000

RCAP2L

00000000

P4CONA

00000000

RCAP2H

00000000

P4CONB

00000000

TL2

00000000

SFRAL

00000000

TH2

00000000

SFRAH

00000000

PWMCON2

00000000

SFRFD

PWM4

00000000

SFRCN

00000000

CHPCON

0xx00000

00000000

+P3

00000000

+IE

P43AL

00000000

P42AL

P43AH

00000000

P42AH

P4CSIN

00000000

+P2

XRAMAH

00000000

SBUF

11111111

+SCON

00000000

+P1

11111111

+TCON

00000000

+P0

xxxxxxxx

P41AL

00000000

TH0

00000000

P40AL

P41AH

00000000

TH1

00000000

P40AH

TMOD

00000000

SP

TL0

00000000

DPL

00000000

TL1

00000000

DPH

00000000

AUXR

00000000

POR

WDTC

00000000

PCON

80

11111111

00000111

00000000

00110000

Notes:

1. The SFRs marked with a plus sign(+) are both byte- and bit-addressable.

2. The text of SFR with bold type characters are extension function registers.

Publication Release Date: January 10, 2007

Revision A7

- 9 -

W78LE365/W78L365A

5.6

Port 4

Port 4, address D8H, is a 8-bit multipurpose programmable I/O port. Each bit can be configured

individually by software. The Port 4 has four different operation modes.

Mode 0: P4.0−P4.3 is a bi-directional I/O port which is same as port 1. P4.2 and P4.3 also serve as

PSEN

external interrupt

and INT2 if enabled.

Mode 1: P4.0−P4.3 are read strobe signals that are synchronized with RD signal at specified

addresses. These signals can be used as chip-select signals for external peripherals.

Mode 2: P4.0−P4.3 are write strobe signals that are synchronized with WR signal at specified

addresses. These signals can be used as chip-select signals for external peripherals.

Mode 3: P4.0−P4.3 are read/write strobe signals that are synchronized with RD or WR signal at

specified addresses. These signals can be used as chip-select signals for external

peripherals.

When Port 4 is configured with the feature of chip-select signals, the chip-select signal address range

depends on the contents of the SFR P4xAH, P4xAL, P4CONA and P4CONB. The registers P4xAH

and P4xAL contain the 16-bit base address of P4.x. The registers P4CONA and P4CONB contain the

control bits to configure the Port 4 operation mode.

The high nibble of port4(P4.4 to P4.7) can be selected to serve to the direct LED display drive outputs

by setting the HDx bit is set, the corresponding pin p4.x can sink about 20 mA current for driving LED

display directly.

5.6.1 Port Options Register

Bit:

7

6

5

-

4

3

2

1

0

-

HD47

HD46

HD45

HD44

P0UP

Mnemonic: POR

Address: 86H

HD47-44: Enable pins P4.4 to P4.7 individually with high drive outputs.

P0UP: Enable Port 0 weak up. The pins of Port 0 can be configured with either the open drain or

standart port with internal pull-up. By the default, Port 0 is an open drain bi-directional I/O port. When

the P0UP bit in the POR register is set, the pins of port 0 will perform a bi-directional I/O port with

internal pull-up that is structurally the same Port2.

5.6.2 INT2 /INT3

Two additional external interrupts, INT2 and INT3 , whose functions are similar to those of external

interrupt 0 and 1 in the standard 80C52. The functions/status of these interrupts are

determined/shown by the bits in the XICON (External Interrupt Control) register. The XICON register is

bit-addressable but is not a standard register in the standard 80C52. Its address is at 0C0H. To

set/clear bits in the XICON register, one can use the "SETB ( CLR ) bit" instruction. For example,

"SETB 0C2H" sets the EX2 bit of XICON.

- 10 -

W78LE365/W78L365A

XICON - external interrupt control (C0H)

PX3 EX3 IE3 IT3

PX2

EX2

IE2

IT2

PX3: External interrupt 3 priority high if set

EX3: External interrupt 3 enable if set

IE3: If IT3 = 1, IE3 is set/cleared automatically by hardware when interrupt is detected/serviced

IT3: External interrupt 3 is falling-edge/low-level triggered when this bit is set/cleared by software

PX2: External interrupt 2 priority high if set

EX2: External interrupt 2 enable if set

IE2: If IT2 = 1, IE2 is set/cleared automatically by hardware when interrupt is detected/serviced

IT2: External interrupt 2 is falling-edge/low-level triggered when this bit is set/cleared by software

Eight-source interrupt information:

POLLING

ENABLE

REQUIRED

SETTINGS

INTERRUPT

TYPE

VECTOR

INTERRUPT SOURCE

SEQUENCE WITHIN

PRIORITY LEVEL

ADDRESS

EDGE/LEVEL

External Interrupt 0

Timer/Counter 0

External Interrupt 1

Timer/Counter 1

Serial Port

Timer/Counter 2

External Interrupt 2

External Interrupt 3

03H

0BH

13H

1BH

23H

2BH

33H

3BH

0 (highest)

IE.0

IE.1

IE.2

IE.3

IE.4

TCON.0

1

2

3

4

5

6

-

TCON.2

-

IE.5

XICON.2

XICON.6

XICON.0

XICON.3

7 (lowest)

P4CONB (C3H)

BIT

NAME

FUNCTION

00: Mode 0. P4.3 is a general purpose I/O port which is the same as Port1.

01: Mode 1. P4.3 is a Read Strobe signal for chip select purpose. The address

range depends on the SFR P43AH, P43AL, P43CMP1 and P43CMP0.

10: Mode 2. P4.3 is a Write Strobe signal for chip select purpose. The address

range depends on the SFR P43AH, P43AL, P43CMP1 and P43CMP0.

P43FUN1

P43FUN0

7, 6

11: Mode 3. P4.3 is a Read/Write Strobe signal for chip select purpose. The

address range depends on the SFR P43AH, P43AL, P43CMP1, and

P43CMP0.

Publication Release Date: January 10, 2007

- 11 -

Revision A7

W78LE365/W78L365A

P4CONB (C3H), continued

BIT

NAME

FUNCTION

Chip-select signals address comparison:

00: Compare the full address (16 bits length) with the base address register

P43AH, P43AL.

01: Compare the 15 high bits (A15−A1) of address bus with the base address

P43CMP1

P43CMP0

register P43AH, P43AL.

5, 4

10: Compare the 14 high bits (A15−A2) of address bus with the base address

register P43AH, P43AL.

11: Compare the 8 high bits (A15−A8) of address bus with the base address

register P43AH, P43AL.

P42FUN1

P42FUN0

P42CMP1

P42CMP0

The P4.2 function control bits which are the similar definition as P43FUN1,

P43FUN0.

3, 2

1, 0

The P4.2 address comparator length control bits which are the similar definition

as P43CMP1, P43CMP0.

P4CONA (C2H)

BIT

NAME

FUNCTION

P41FUN1

P41FUN0

P41CMP1

P41CMP0

P40FUN1

P40FUN0

P40CMP1

P40CMP0

The P4.1 function control bits which are the similar definition as P43FUN1,

P43FUN0.

7, 6

The P4.1 address comparator length control bits which are the similar definition

as P43CMP1, P43CMP0.

5, 4

3, 2

1, 0

The P4.0 function control bits which are the similar definition as P43FUN1,

P43FUN0.

The P4.0 address comparator length control bits which are the similar definition

as P43CMP1, P43CMP0.

P4CSIN (AEH)

BIT

NAME

FUNCTION

The active polarity of P4.3 when pin P4.3 is defined as read and/or write strobe

signal.

7

P43CSINV

= 1: P4.3 is active high when pin P4.3 is defined as read and/or write strobe signal.

= 0: P4.3 is active low when pin P4.3 is defined as read and/or write strobe signal.

6

5

4

3

2

1

0

P42CSINV The similarity definition as P43SINV.

P41CSINV The similarity definition as P43SINV.

P40CSINV The similarity definition as P43SINV.

-

Reserve

0

- 12 -

W78LE365/W78L365A

5.6.3 Port 4 Base Address Registers

P40AH, P40AL:

The Base address register for comparator of P4.0. P40AH contains the high-order byte of address,

P40AL contains the low-order byte of address.

P41AH, P41AL:

The Base address register for comparator of P4.1. P41AH contains the high-order byte of address,

P41AL contains the low-order byte of address.

P42AH, P42AL:

The Base address register for comparator of P4.2. P42AH contains the high-order byte of address,

P42AL contains the low-order byte of address.

P43AH, P43AL:

The Base address register for comparator of P4.3. P43AH contains the high-order byte of address,

P43AL contains the low-order byte of address.

P4 (D8H)

BIT

7

6

5

4

3

2

1

0

NAME

P47

P46

P45

P44

P43

P42

P41

P40

FUNCTION

I/O pin

I/O pin.

Port 4 Data bit which outputs to pin P4.3 at mode 0.

Port 4 Data bit. which outputs to pin P4.2 at mode 0.

Port 4 Data bit. which outputs to pin P4.1at mode 0.

Port 4 Data bit which outputs to pin P4.0 at mode 0.

Here is an example to program the P4.0 as a write strobe signal at the I/O port address 1234H−1237H

and positive polarity, and P4.1−P4.3 are used as general I/O ports. P4.4−P4.7 is only available for 48

pin package.

MOV P40AH, #12H

MOV P40AL, #34H

; Base I/O address 1234H for P4.0

MOV P4CONA, #00001010B

MOV P4CONB, #00H

MOV P2ECON, #10H

; P4.0 a write strobe signal and address line A0 and A1 are masked.

; P4.1−P4.3 as general I/O port which are the same as PORT1

; Write the P40SINV = 1 to inverse the P4.0 write strobe polarity

; default is negative.

Then any instruction MOVX @DPTR, A (with DPTR = 1234H−1237H) will generate the positive

polarity write strobe signal at pin P4.0. And the instruction MOV P4, #XX will output the bit3 to bit1 of

data #XX to pin P4.3−P4.1.

Publication Release Date: January 10, 2007

- 13 -

Revision A7

W78LE365/W78L365A

P4xCSINV

P4 REGISTER

P4.x

DATA I/O

RD_CS

MUX 4->1

WR_CS

READ

WRITE

RD/WR_CS

P4.x

ADDRESS BUS

P4xFUN0

P4xFUN1

EQUAL

REGISTER

P4xAL

P4xAH

Bit Length

P4.x INPUT DATA BUS

Selectable

comparator

REGISTER

P4xCMP0

P4xCMP1

5.7

Pulse Width Modulated Outputs (PWM)

There are five pulse width modulated output channels to generate pulses of programmable length and

interval. The repetition frequency is defined by an 8-bit prescaler PWMP, which supplies the clock for

the counter. The prescaler and counter are common to both PWM channels. The 8-bit counter counts

modular 255 (0−254). The value of the 8-bit counter compared to the contents of five registers:

PWM0, PWM1, PWM2, PWM3 and PWM4. Provided the contents of either these registers is greater

than the counter value, the corresponding PWM0, PWM1, PWM2, PWM3 or PWM4 output is set

HIGH. If the contents of these registers are equal to, or less than the counter value, the output will be

LOW. The pulse-width-ratio is defined by the contents of the registers PWM0, PWM1, PWM2, PWM3

and PWM4. The pulse-width-ratio is in the range of 0 to 1 and may be programmed in increments of

1/255. ENPWM0, ENPWM1, ENPWM2, ENPWM3 and ENPWM4 bit will enable or disable PWM

output.

Buffered PWM outputs may be used to drive DC motors. The rotation speed of the motor would be

proportional to the contents of PWM0/1/2/3/4. The repetition frequency fpwm , at the PWM0/1/2/3/4

output is given by:

f

osc

f

pwm =

2×(1+ PWMP)×255

Prescaler division factor = PWM + 1

(PWMn)

255 - (PWMn)

PWMn high/low ratio of PWMn =

- 14 -

W78LE365/W78L365A

This gives a repetition frequency range of 123 Hz to 31.4 KHz ( f^osc= 16 MHz). By loading the PWM

registers with either 00H or FFH, the PWM channels will output a constant HIGH or LOW level,

respectively. Since the 8-bit counter counts modulo 255, it can never actually reach the value of the

PWM registers when they are loaded with FFH.

When a compare register (PWM0, PWM1, PWM2, PWM3, PWM4) is loaded with a new value, the

associated output updated immediately. It does not have to wait until the end of the current counter

period. There is weakly pulled high on PWM output.

comparator

ENPWM0/1/2/3/4

PWM0OE

PWM0

(P1.3)

f

Prescaler

PWMP

osc

1/2

8bit counter

PWM1

PWM1OE

PWM1

(P1.4)

comparator

PWM2OE

PWM3OE

PWM2

(P1.5)

8bit counter

PWM3

(P1.6)

PWM3

comparator

8bit counter

PWM4

PWM4OE

PWM4

(P1.7)

FIGURE 1 PWM DIAGRAM

Please refer as below code.

mov pwmcon1, #00110011b ; enable pwm3, 2, 1, 0

mov pwmcon2, #00000101b ; enable pwm4

mov pwmp, #40h

jb p1.3, $

mov pwm0, #14h

jb p1.4, $

mov pwm1, #18h

; Fpwm = XT/(2*(1+pwmp)*255)

; duty cycle high/low = pwm0/(255-pmw0)

Publication Release Date: January 10, 2007

Revision A7

- 15 -

W78LE365/W78L365A

jb

mov pwm2, #20h

jb p1.6, $

mov pwm3, #b0h

jb p1.7, $

mov pwm4, #40h

mov pwmcon1, #11111111b ;output enable pwm3, 2, 1, 0

p1.5, $

PWM3 Register

Bit:

7

6

5

4

3

2

1

0

Mnemonic: PWM3

Address: DEH

PWM2 Register

Bit:

6

5

3

2

Mnemonic: PWM2

Address: DDH

PWM Control 1 Register

Bit:

7

6

5

4

3

2

1

0

PWM3OE

PWM2OE

ENPWM3

ENPWM2

PWM1OE

PWM0OE

ENPWM1

ENWPM0

Mnemonic: PWMCON1

Address: DCH

PWM3OE: Output enable for PWM3

PWM2OE: Output enable for PWM2

ENPWM3: Enable PWM3

ENPWM2: Enable PWM2

PWM1OE: Output enable for PWM1

PWM0OE: Output enable for PWM0

ENPWM1: Enable PWM1

ENPWM0: Enable PWM0

PWM1 Register

Bit:

7

6

5

4

3

2

1

0

Mnemonic: PWM1

Address: DBH

- 16 -

W78LE365/W78L365A

PWM0 Register

Bit:

7

6

5

4

3

2

1

0

Mnemonic: PWM0

Address: DAH

PWMP Register

Bit:

6

5

3

2

Mnemonic: PWMP

Address: D9H

PWM4 Register

Bit:

6

5

3

2

Mnemonic: PWM4

Address: CFH

PWM Control 2 Register

Bit:

7

-

6

-

5

-

4

-

3

-

2

1

-

0

PWM4OE

ENWPM4

Mnemonic: PWMCON2

Address: CEH

PWM4OE: Output enable for PWM4

ENPWM: Enable for PWM4

5.8

Watchdog Timer

The Watchdog timer is a free-running timer which can be programmed by the user to serve as a

system monitor, a time-base generator or an event timer. It is basically a set of dividers that divide the

system clock. The divider output is selectable and determines the time-out interval. When the time-out

occurs, a system reset can also be caused if it is enabled. The main use of the Watchdog timer is as a

system monitor. This is important in real-time control applications. In case of power glitches or electro-

magnetic interference, the processor may begin to execute errant code. If this is left unchecked the

entire system may crash. The watchdog time-out selection will result in different time-out values

depending on the clock speed. The Watchdog timer will de disabled on reset. In general, software

should restart the Watchdog timer to put it into a known state. The control bits that support the

Watchdog timer are discussed below.

Watchdog Timer Control Register

Bit:

7

6

5

4

-

3

-

2

PS2

1

PS1

0

PS0

ENW

CLRW

WIDL

Mnemonic: WDTC

Address: 8FH

ENW : Enable watch-dog if set.

CLRW : Clear watch-dog timer and prescaler if set. This flag will be cleared automatically

WIDL : If this bit is set, watch-dog is enabled under IDLE mode. If cleared, watch-dog is disabled

under IDLE mode. Default is cleared.

Publication Release Date: January 10, 2007

- 17 -

Revision A7

W78LE365/W78L365A

PS2, PS1, PS0: Watch-dog prescaler timer select. Prescaler is selected when set PS2−0 as follows:

PS2 PS1 PS0

PRESCALER SELECT

0

1

0

1

0

1

0

1

0

1

0

1

0

1

2

4

8

16

32

64

128

256

The time-out period is obtained using the following equation:

1

OSC

14

× 2 × PRESCALER × 1000 × 12 mS

Before Watchdog time-out occurs, the program must clear the 14-bit timer by writing 1 to WDTC.6

(CLRW). After 1 is written to this bit, the 14-bit timer, prescaler and this bit will be reset on the next

instruction cycle. The Watchdog timer is cleared on reset.

ENW

WIDL

IDLE

EXTERNAL

RESET

INTERNAL

RESET

14-BIT TIMER

CLEAR

PRESCALER

OSC

1/12

CLRW

Watchdog Timer Block Diagram

Typical Watch-Dog time-out period when OSC = 20 MHz

PS2 PS1 PS0

WATCHDOG TIME-OUT PERIOD

19.66 mS

0

1

0

1

0

1

0

1

0

1

0

1

0

1

39.32 mS

78.64 mS

157.28 mS

314.57 mS

629.14 mS

1.25 S

2.50 S

- 18 -

W78LE365/W78L365A

5.9

In-System Programming (ISP) Mode

The W78L365A equips one 64K byte of main ROM bank for application program (called APROM) and

one 4K byte of auxiliary ROM bank for loader program (called LDROM). In the normal operation, the

microcontroller executes the code in the APROM. If the content of APROM needs to be modified, the

W78L365A allows user to activate the In-System Programming (ISP) mode by setting the CHPCON

register. The CHPCON is read-only by default, software must write two specific values 87H,

then 59H sequentially to the CHPENR register to enable the CHPCON write attribute. Writing

CHPENR register with the values except 87H and 59H will close CHPCON register write

attribute. The W78L365A achieves all in-system programming operations including enter/exit ISP

Mode, program, erase, read ... etc, during device in the idle mode. Setting the bit CHPCON.0 the

device will enter in-system programming mode after a wake-up from idle mode. Because device

needs proper time to complete the ISP operations before awaken from idle mode, software may use

timer interrupt to control the duration for device wake-up from idle mode. To perform ISP operation for

revising contents of APROM, software located at APROM setting the CHPCON register then enter idle

mode, after awaken from idle mode the device executes the corresponding interrupt service routine in

LDROM. Because the device will clear the program counter while switching from APROM to LDROM,

the first execution of RETI instruction in interrupt service routine will jump to 00H at LDROM area. The

device offers a software reset for switching back to APROM while the content of APROM has been

updated completely. Setting CHPCON register bit 0, 1 and 7 to logic-1 will result a software reset

to reset the CPU. The software reset serves as a external reset. This in-system programming feature

makes the job easy and efficient in which the application needs to update firmware frequently. In some

applications, the in-system programming feature make it possible to easily update the system

firmware without opening the chassis.

SFRAH, SFRAL: The objective address of on-chip ROM in the in-system programming mode.

SFRAH contains the high-order byte of address, SFRAL contains the low-order byte of address.

SFRFD: The programming data for on-chip ROM in programming mode.

SFRCN: The control byte of on-chip ROM programming mode.

SFRCN (C7)

BIT

NAME

FUNCTION

7

-

Reserve.

On-chip ROM bank select for in-system programming.

= 0: 64K bytes ROM bank is selected as destination for re-programming.

= 1: 4K bytes ROM bank is selected as destination for re-programming.

ROM output enable.

6

WFWIN

5

4

OEN

CEN

ROM chip enable.

3, 2, 1, 0

CTRL[3:0] The flash control signals

Publication Release Date: January 10, 2007

Revision A7

- 19 -

W78LE365/W78L365A

MODE

WFWIN

CTRL<3:0>

0010

OEN

CEN

SFRAH, SFRAL

X

SFRFD

X

Erase 64KB APROM

Program 64KB APROM

Read 64KB APROM

Erase 4KB LDROM

Program 4KB LDROM

Read 4KB LDROM

0

1

0

1

0

0001

Address in

X

Data in

Data out

X

0000

0010

0001

Address in

Data in

Data out

0000

5.9.1 In-System Programming Control Register (CHPCON)

CHPCON (BFH)

BIT

7

NAME

SWRESET

-

FUNCTION

When this bit is set to 1, and both FBOOTSL and FPROGEN are set to 1. It

will enforce microcontroller reset to initial condition just like power on reset.

6

Reserve.

This bit is read only. 1: CPU is running LDROM program. 0: CPU is running

APROM program.

5

LD/AP

1: Enable on-chip AUX-RAM.

0: Disable the on-chip AUX-RAM

Must be 1

4

ENAUXRAM

3

2

1

-

Reserve.

When this bit is set to 1, and both SWRESET and FPROGEN are set to 1. It

will enforce microcontroller reset to initial condition just like power on reset.

1

0

FBOOTSL

FPROGEN

When this bit is set to 1, and both SWRESET and FBOOTSL are set to 1. It

will enforce microcontroller reset to initial condition just like power on reset.

This register is protected by CHPENR register. Please write as below procedures while you

would like to write CHPCON register.

Mov CHPENR, #87h

Mov CHPENR, #59h

Anl CHPCON, #EFh ;Disable AUX-RAM

Mov CHPENR, #0h

- 20 -

W78LE365/W78L365A

5.10 Software Reset

Set CHPCON = 0X83, timer and enter IDLE mode. CPU will reset and restart from APFLASH after

time out.

5.11 H/W Reboot Mode (Boot from LDROM)

By default, the W78L365A boots from APROM program after a power on reset. On some occasions,

user can force the W78L365A to boot from the LDROM program via following settings. The possible

situation that you need to enter H/W REBOOT mode when the APROM program can not run properly

and device can not jump back to LDROM to execute in-system programming function. Then you can

use this H/W REBOOT mode to force the W78L365A jumps to LDROM and executes in-system

programming procedure. When you design your system, you may reserve the pins P2.6, P2.7 to

switches or jumpers. For example in a CD-ROM system, you can connect the P2.6 and P2.7 to PLAY

and EJECT buttons on the panel. When the APROM program fails to execute the normal application

program. User can press both two buttons at the same time and then turn on the power of the

personal computer to force the W78L365A to enter the H/W REBOOT mode. After power on of

personal computer, you can release both buttons and finish the in-system programming procedure to

update the APROM code. In application system design, user must take care of the P2, P3, ALE, EA

and PSEN pin value at reset to prevent from accidentally activating the programming mode or H/W

REBOOT mode. It is necessary to add 10K resistor on these P2.6, P2.7 and P4.3 pins.

H/W Reboot MODE

P4.3

X

L

P2.7

L

X

P2.6

L

X

MODE

REBOOT

The Reset Timing For Entering

F04KBOOT Mode

P2.7

Hi-Z

P2.6

RST

30 mS

10 mS

Publication Release Date: January 10, 2007

Revision A7

- 21 -

W78LE365/W78L365A

The Algorithm of In-System Programming

Part 1:32KB APROM

procedure of entering

START

In-System Programming Mode

Enter In-System

Programming Mode ?

(conditions depend on

user's application)

No

Yes

Setting control registers

MOV CHPENR,#87H

MOV CHPENR,#59H

MOV CHPCON,#03H

Execute the normal application

program

Setting Timer (about 1.5 us)

and enable timer interrupt

END

Start Timer and enter idle Mode.

(CPU will be wakened from idle mode

by timer interrupt, then enter In-System

Programming mode)

CPU will be wakened by interrupt and

re-boot from 4KB LDROM to execute

the loader program.

Go

- 22 -

W78LE365/W78L365A

Part 2: 4KB LDROM

Procedure of Updating

the 32KB APROM

Go

Timer Interrupt Service Routine:

Stop Timer & disable interrupt

PGM

Yes

Is F04KBOOT Mode?

(CHPCON.7=1)

End of Programming ?

No

Reset the CHPCON Register:

MOV CHPENR,#87H

MOV CHPENR,#59H

MOV CHPCON,#03H

Setting Timer and enable Timer

interrupt for wake-up .

(50us for program operation)

Yes

Is currently in the

F04KBOOT Mode ?

No

Software reset CPU and

re-boot from the 32KB

APROM.

MOV CHPENR,#87H

MOV CHPENR,#59H

MOV CHPCON,#83H

Get the parameters of new code

(Address and data bytes)

Setting Timer and enable Timer

interrupt for wake-up .

(15 ms for erasing operation)

through I/O ports, UART or

other interfaces.

Setting erase operation mode:

MOV SFRCN,#22H

(Erase 32KB APROM)

Setting control registers for

programming:

Hardware Reset

to re-boot from

MOV SFRAH,#ADDRESS_H

MOV SFRAL,#ADDRESS_L

MOV SFRFD,#DATA

new 32 KB APROM.

(S/W reset is

Start Timer and enter IDLE

Mode.

MOV SFRCN,#21H

invalid in F04KBOOT

(Erasing...)

Mode)

End of erase

operation. CPU will

be wakened by Timer

interrupt.

END

Executing new code

from address

00H in the 32KB APROM.

PGM

Publication Release Date: January 10, 2007

Revision A7

- 23 -

W78LE365/W78L365A

6. SECURITY

During the on-chip ROM programming mode, the ROM can be programmed and verified repeatedly.

Until the code inside the ROM is confirmed OK, the code can be protected. The protection of ROM

and those operations on it are described below.

The W78L365A has a Security Register that can be accessed in programming mode. Those bits of

the Security Registers can not be changed once they have been programmed from high to low. They

can only be reset through erase-all operation. The Security Register is located at the 0FFFFH of the

LDROM space.

0000h

4KB On-chip ROM

32KB On-chip ROM

Program Memory

Security Bits

B2 B1 B0

B7 Reserved

LDROM

0FFFh

7FFFh

APROM

B0: Lock bit, logic 0: active

B1: MOVC inhibit,

logic 0: the MOVC instruction in external memory

cannot access the code in internal memory.

logic 1: no restriction.

RReesseerrvveedd

B2: Encryption

logic 0: the encryption logic enable

logic 1: the encryption logic disable

B07: Osillator Control

FFFFh

Security Register

logic 0: 1/2 gain

logic 1: Full gain

Default 1 for all security bits.

Reserved bits must be kept in logic 1.

Special Setting Register

6.1

Lock Bit

This bit is used to protect the customer's program code in the W78L365A. It may be set after the

programmer finishes the programming and verifies sequence. Once this bit is set to logic 0, both the

ROM data and Security Register can not be accessed again.

6.2

MOVC Inhibit

This bit is used to restrict the accessible region of the MOVC instruction. It can prevent the MOVC

instruction in external program memory from reading the internal program code. When this bit is set to

logic 0, a MOVC instruction in external program memory space will be able to access code only in the

external memory, not in the internal memory. A MOVC instruction in internal program memory space

will always be able to access the ROM data in both internal and external memory. If this bit is logic 1,

there are no restrictions on the MOVC instruction.

- 24 -

W78LE365/W78L365A

6.3

Encryption

This bit is used to enable/disable the encryption logic for code protection. Once encryption feature is

enabled, the data presented on port 0 will be encoded via encryption logic. Only whole chip erase will

reset this bit.

6.4

Oscillator Control

W78L365A/E516 allow user to diminish the gain of on-chip oscillator amplifier by using programmer to

set the bit B7 of security register. Once B7 is set to 0, a half of gain will be decreased. Care must be

taken if user attempts to diminish the gain of oscillator amplifier, reducing a half of gain may

improperly affect the external crystal operation at high frequency above 20 MHz. The value of R and

C1, C2 may need some adjustment while running at lower gain.

Publication Release Date: January 10, 2007

- 25 -

Revision A7

W78LE365/W78L365A

7. ELECTRICAL CHARACTERISTICS

7.1 Absolute Maximum Ratings

PARAMETER

DC Power Supply

Input Voltage

Operating Temperature

Storage Temperature

SYMBOL

MIN.

-0.3

VSS -0.3

0

MAX.

+6.0

VDD +0.3

70

UNIT

V

°C

VDD−VSS

VIN

TA

TST

-55

+150

Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability

of the device.

7.2

D.C. Characteristics

(V_SS= 0v, T_A= 25°C, unless otherwise specified.)

SPECIFICATION

MIN. MAX. UNIT

SYMBOL

PARAMETER

Operating Voltage

TEST CONDITIONS

Without ISP

With ISP

No load V_DD= 5.5V

2.4

2.7

-

5.5

20

2.5

6

1

10

V

V_DD

I_DD

mA

µA

Operating Current

Idle Current

No load V_DD= 2.4V

-

V_DD= 5.5V, Fosc = 20 MHz

V_DD= 2.4V, Fosc = 12 MHz

V_DD= 5.5V, Fosc = 20 MHz

I_IDLE

I_PWDN

I_IN1

-

Power Down Current

V_DD= 2.4V, Fosc = 12 MHz

Input Current

P1, P2, P3, P4

Input Current

RST

V_DD= 5.5V or 2.4V,

-50

+10

µA

V_IN= 0V or V_DD

-10

+150

50

V_DD= 5.5V, 0<V_IN<V_DD

V_DD= 2.4V, 0<V_IN<V_DD

µA

I_IN2

Input Leakage Current

P0, EA

V

_DD= 5.5V or 2.4 V

I_LK

-10

+10

µA

0V<V_IN<V_DD

-500

-50

-200

-30

V_DD= 5.5V, V_IN= 1.4V

V_DD= 2.4V, V_IN= 0.92V

µA

Logic 1 to 0 Transition Current

P1, P2, P3, P4

[*4]

I_TL

- 26 -

W78LE365/W78L365A

D.C. Characteristics, continued

SPECIFICATION

SYMBOL

PARAMETER

TEST CONDITIONS

MIN.

0

MAX.

0.8

UNIT

V

Input Low Voltage

V_DD= 4.5V

V_IL1

V _IL3

V_IH1

V_IH2

V_IH3

0

0.5

V

V_DD= 2.4V

P0, P1, P2, P3, P4, RST, EA

Input Low Voltage

XTAL1^[*4]

0

0.8

0.4

V_DD+0.2

V

V_DD= 4.5V

V_DD= 2.4V

V_DD= 5.5V

V_DD= 2.4V

V_DD= 5.5V

V_DD= 2.4V

V_DD= 5.5V

V_DD= 2.4V

V_DD= 4.5V

Input High Voltage

2.4

1.4

3.5

1.7

3.5

1.6

-

V

_DD+0.2

V_DD+0.2

_DD+0.2

V_DD+0.2

0.45

V

P0, P1, P2, P3, P4, EA

Input High Voltage

RST

V

Input High Voltage

XTAL1^[*4]

Output Low Voltage

V

V_OL

P1, P2, P3, P4, P0, ALE,

PSEN

-

0.4

V

V_DD= 2.4V

4

2.5

10

5

8

4.5

14

9

mA

V_DD= 4.5V, VOL = 0.45V

Sink current

P1, P3, P4

Sink current

Isk1

Isk2

V_DD= 2.4V, VOL = 0.4V

V_DD= 4.5V, VOL = 0.45V

V_DD= 2.4V, VOL = 0.4V

V_DD= 4.5V

P0, P2, ALE, PSEN

Output High Voltage

2.4

-

V

V_OH

P1, P2, P3, P4, P0, ALE,

PSEN

1.4

-

V

_DD= 2.4V

V_DD= 4.5V, VOH = 2.4V

_DD= 2.4V, VOH = 1.4V

V_DD= 4.5V, VOH = 2.4V

V_DD= 2.4V, VOH = 1.4V

-150

-20

-200

-60

Source current

P1, P2, P3, P4

µA

mA

Isr1

Isr2

V

Source current

-10

-14

-1.9

-3.8

P0, P2, ALE, PSEN

Notes:

*1. RST pin is a Schmitt trigger input.

*2. P0, ALE and PSEN are tested in the external access mode.

*3. XTAL1 is a CMOS input.

*4. Pins of P1, P2, P3, P4 can source a transition current when they are being externally driven from 1 to 0.

Publication Release Date: January 10, 2007

Revision A7

- 27 -

W78LE365/W78L365A

7.3

A.C. Characteristics

The AC specifications are a function of the particular process used to manufacture the part, the

ratings of the I/O buffers, the capacitive load, and the internal routing capacitance. Most of the

specifications can be expressed in terms of multiple input clock periods (TCP), and actual parts will

usually experience less than a ±20 nS variation.

Clock Input Waveform

XTAL1

T_CH

T_CL

F_OP,

T_CP

PARAMETER

Operating Speed

Clock Period

Clock High

SYMBOL

FOP

MIN.

0

TYP.

MAX.

UNIT

MHz

nS

NOTES

-

20

-

1

2

3

TCP

41.7

20

TCH

-

nS

Clock Low

TCL

20

-

nS

Notes:

1. The clock may be stopped indefinitely in either state.

2. The TCP specification is used as a reference in other specifications.

3. There are no duty cycle requirements on the XTAL1 input.

- 28 -

W78LE365/W78L365A

8. TIMING WAVEFORMS

8.1 Program Fetch Cycle

S1

S2

S3

S4

S5

S6

S1

S2

S3

S4

S5

S6

XTAL1

ALE

T

ALW

T

APL

PSEN

T

PSW

T

AAS

PORT 2

PORT 0

T

PDA

T

AAH

T

PDH, PDZ

A0-A7

Code A0-A7

Code

Data

A0-A7

PARAMETER

Address Valid to ALE Low

SYMBOL

TAAS

MIN.

1 TCP-∆

TYP.

MAX.

UNIT

nS

NOTES

-

4

1, 4

4

Address Hold from ALE Low

ALE Low to PSEN Low

TAAH

nS

1 TCP-∆

TAPL

nS

1 TCP-∆

TPDA

TPDH

TPDZ

TALW

TPSW

-

2 TCP

nS

2

3

PSEN Low to Data Valid

Data Hold after PSEN High

Data Float after PSEN High

ALE Pulse Width

0

-

1 TCP

0

-

1 TCP

2 TCP

3 TCP

-

4

2 TCP-∆

3 TCP-∆

PSEN Pulse Width

Notes:

1. P0.0−P0.7, P2.0−P2.7 remain stable throughout entire memory cycle.

2. Memory access time is 3 TCP.

3. Data have been latched internally prior to PSEN going high.

4. "∆" (due to buffer driving delay and wire loading) is 20 nS.

Publication Release Date: January 10, 2007

Revision A7

- 29 -

W78LE365/W78L365A

8.2

Data Read Cycle

S4

S5

S6

S1

S2

S3

S4

S5

S6

S1

S2

S3

XTAL1

ALE

PSEN

PORT 2

A8-A15

DATA

A0-A7

PORT 0

RD

T_DAR

T_DDA

T_DDH,T_DDZ

T_DRD

PARAMETER

SYMBOL

TDAR

MIN.

TYP.

MAX.

3 TCP+∆

4 TCP

2 TCP

-

UNIT

nS

NOTES

1, 2

1

-

3 TCP-∆

ALE Low to RD Low

TDDA

-

nS

RD Low to Data Valid

Data Hold from RD High

Data Float from RD High

RD Pulse Width

TDDH

0

-

nS

TDDZ

nS

TDRD

6 TCP

nS

2

6 TCP-∆

Notes:

1. Data memory access time is 8 TCP.

2. "∆" (due to buffer driving delay and wire loading) is 20 nS.

- 30 -

W78LE365/W78L365A

8.3

Data Write Cycle

S4

S5

S6

S1

S2

S3

S4

S5

S6

S1

S2

S3

XTAL1

ALE

PSEN

A8-A15

PORT 2

PORT 0

WR

A0-A7

DATA OUT

DAD

T_DWD

T

T_DWR

T_DAW

PARAMETER

SYMBOL

TDAW

MIN.

TYP.

MAX.

UNIT

nS

-

3 TCP-∆

1 TCP-∆

6 TCP-∆

3 TCP+∆

ALE Low to WR Low

TDAD

-

nS

Data Valid to WR Low

Data Hold from WR High

WR Pulse Width

TDWD

nS

TDWR

6 TCP

nS

Note: "∆" (due to buffer driving delay and wire loading) is 20 nS.

Publication Release Date: January 10, 2007

Revision A7

- 31 -

W78LE365/W78L365A

8.4

Port Access Cycle

S5

S6

S1

XTAL1

ALE

T

PDS

T

PDA

PDH

PORT

DATA OUT

INPUT

SAMPLE

PARAMETER

SYMBOL

MIN.

1 TCP

0

TYP.

MAX.

UNIT

nS

Port Input Setup to ALE Low

Port Input Hold from ALE Low

Port Output to ALE

TPDS

TPDH

TPDA

-

nS

1 TCP

nS

Note: Ports are read during S5P2, and output data becomes available at the end of S6P2. The timing data are referenced to

ALE, since it provides a convenient reference.

- 32 -

W78LE365/W78L365A

9. TYPICAL APPLICATION CIRCUIT

9.1 External Program Memory and Crystal

V

DD

AD0

39

31

19

3

4

7

11

12

13

AD0

AD1

AD2

AD0

AD1

AD2

A0

A1

2 A0

5 A1

10

9

D0 Q0

D1 Q1

D2 Q2

D3 Q3

D4 Q4

D5 Q5

D6 Q6

D7 Q7

P0.0

P0.1

P0.2

P0.3

P0.4

P0.5

P0.6

P0.7

A0

O0

O1

O2

O3

O4

O5

O6

O7

EA

38 AD1

A1

AD2

AD3

AD4

AD5

A2

37

36

35

34

6

8

A2

XTAL1

A3

AD38

9 A3

12A4

15A5

15 AD3

10 u

C1

7

A3

A4

13

AD4

16

17

18

6

AD4

AD5

AD6

A4

R

18

9

A5

14

AD5

5

XTAL2

RST

A5

CRYSTAL

C2

33 AD6

A6

A7

A6

17

AD6

16

19

4

A6

32

A7

AD7

A8

3

AD718

19 AD7

A7

8.2 K

A8

25

24

21

23

2

A8

1

GND

11

21

22

23

24

25

26

27

28

A9

OC

G

P2.0

P2.1

P2.2

P2.3

P2.4

P2.5

P2.6

P2.7

A9

A10

A11

A12

A13

A14

A15

A10

A11

A12

A13

A14

A15

INT0

12

13

14

15

A10

A11

A12

A13

A14

A15

INT1

74LS373

26

27

1

T0

T1

1

P1.0

P1.1

P1.2

P1.3

P1.4

P1.5

P1.6

P1.7

20

22

GND

2

3

4

5

6

7

8

CE

OE

RD

WR

17

16

29

30

27512

PSEN

ALE

11

10

TXD

RXD

W78LE365/W78L365A

Figure A

CRYSTAL

6 MHz

C1

C2

R

47P

30P

15P

47P

30P

10P

-

16 MHz

20 MHz

Above table shows the reference values for crystal applications.

Notes:

1. C1, C2, R components refer to Figure A

2. Crystal layout must get close to XTAL1 and XTAL2 pins on user's application board.

Publication Release Date: January 10, 2007

Revision A7

- 33 -

W78LE365/W78L365A

9.2

Expanded External Data Memory and Oscillator

V

DD

V

DD

31

19

10

AD0

AD1

AD2

39

3

4

7

AD0

11

12

13

15

16

17

18

19

AD0

AD1

AD2

AD3

AD4

2

5

6

9

A0 A0

A1 A1

A2 A2

A3 A3

P0.0

P0.1

P0.2

P0.3

P0.4

P0.5

P0.6

P0.7

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

D0 Q0

D1 Q1

D2 Q2

D3 Q3

D4 Q4

D5 Q5

D6 Q6

D7 Q7

D0

D1

D2

D3

D4

D5

D6

D7

EA

38 AD1

9

8

AD2

AD3

37

36

XTAL1

AD3 8

7

OSCILLATOR

10 u

13

35 AD4

34 AD5

12 A4 A4

6

AD4

18

9

14

17

18

15

16

A5

5

AD5

AD6

AD7

XTAL2

AD5

AD6

AD7

AD6

AD7

33

32

A6 A6

4

19 A7 A7

A8

3

8.2 K

25

RST

INT0

GND

A8

1

11

21

A9 24

P2.0

P2.1

P2.2

P2.3

P2.4

P2.5

P2.6

P2.7

OC

G

22 A9

21

23

2

A10

A11

A12

A13

A14

A10

A11

A12

12

13

14

15

23 A10

24 A11

25 A12

74LS373

INT1

26

1

A13

A14

CE

OE

WR

T0

26

A13

T1

27

28

A14

1

2

3

4

5

6

7

8

GND

20

22

27

P1.0

P1.1

P1.2

P1.3

P1.4

P1.5

P1.6

P1.7

RD

WR

17

16

29

30

11

10

20256

PSEN

ALE

TXD

RXD

W78LE365/W78L365A

Figure B

- 34 -

W78LE365/W78L365A

10. PACKAGE DIMENSIONS

10.1 40-pin DIP

Dimension in incDhimension in m

Symbol

Min. Nom. Max. Min. Nom. Max.

5.334

0.210

A

0.010

0.150 0.155 0.160 3.81 3.937 4.064

0.254

A

1

2

A

0.016 0.018

0.406 0.457 0.559

1.219 1.27 1.372

0.022

0.054

B

0.050

0.048

0.008

1

B

0.203

0.356

0.010 0.014

2.055 2.070

0.254

c

D

52.20 52.58

D

E

40

21

15.494

13.97

0.610

15.24

0.590 0.600

14.986

13.72 13.84

0.540

0.545 0.550

E

1

0.110

0.090 0.100

0.120 0.130

0

2.286 2.54 2.794

e

L

a

1

0.140 3.048 3.302

3.556

15

1

E

15

0

0.630

0.670 16.00

0.090

17.01

2.286

0.650

16.51

e

A

S

Notes:

1

20

E

1. Dimension D Max. & S include mold flash

tie bar burrs.

2. Dimension E1 does not include interlead flas

3. Dimension D & E1 include mold mismatch a

S

c

A²

A

L

Base Plane

1

A

.

are determined at the mold parting line

Seating Plane

4. Dimension B1 does not include damba

protrusion/intrusion.

B

e₁

e_A

5. Controlling dimension: Inches.

6. General appearance spec. should be based

final visual inspection spec.

a

B₁

10.2 44-pin PLCC

H^D

D

6

1

44

40

Dimension in inch Dimension in mm

Min. Nom. Max. Min. Nom. Max.

Symbol

7

39

0.185

4.699

0.508

3.683 3.81 3.937

A

0.020

A

1

0.145 0.150

0.026 0.028

0.155

A₂

b₁

0.032 0.66

0.813

0.559

0.356

0.711

0.406

0.022

0.016 0.018

0.457

b

H_E

G_E

E

0.008 0.010 0.014 0.203 0.254

c

16.46 16.59 16.71

1.27 BSC

0.648 0.653 0.658

0.050 BSC

D

E

e

0.590

0.680

14.99 15.49 16.00

17

29

0.610

0.630

G_D

0.610 0.630

0.690 0.700

G

H

E

17.27

17.53 17.78

17.27 17.53 17.78

18

28

D

c

0.700

0.690

H

E

0.090 0.100

2.54 2.794

0.10

0.110 2.296

0.004

L

y

L

Notes:

A²

A¹

A

1. Dimension D & E do not include interlead

flash.

θ

2. Dimension b1 does not include dambar

protrusion/intrusion.

e

b

b₁

3. Controlling dimension: Inches

4. General appearance spec. should be based

on final visual inspection spec.

Seating Plane

y

G_D

Publication Release Date: January 10, 2007

Revision A7

- 35 -

W78LE365/W78L365A

10.3 44-pin PQFP

H _D

D

Dimension in inch

Dimension in mm

Symbol

Min. Nom. Max. Min. Nom. Max.

34

44

---

0.5

A

0.002

0.01

0.02

0.25

2.05

0.05

1.90

0.25

1

A

0.075 0.081 0.087

2.20

0.45

0.254

A

b

c

2

33

1

0.01

0.014

0.006

0.394

0.031

0.018

0.010

0.398

0.036

0.530

0.35

0.101 0.152

0.004

0.390

10.00

0.80

9.9

10.1

0.952

13.45

0.95

1.905

0.08

7

D

E

e

0.390

0.025

E

HE

0.635

12.95

0.65

0.510 0.520

13.2

0.8

D

E

H

0.520 0.530

0.025 0.031

0.510

H

L

y

11

0.037

0.051 0.063 0.075 1.295

0.003

1.6

1

12

22

e

b

7

θ

0

Notes:

1. Dimension D & E do not include interlead

c

flash.

2. Dimension b does not include dambar

protrusion/intrusion.

A

A₂

A¹

3. Controlling dimension: Millimeter

θ

4. General appearance spec. should be based

on final visual inspection spec.

L

See Detail F

y

Seating Plane

L

1

Detail F

10.4 48-pin LQFP

D

H

D

25

36

Dimension in mm

Symbol

Min. Nom. Max.

1.60

0.15

1.45

---

A

---

0.05

1.35

A

A₂

b

1

24

37

1.40

0.17 0.20

0.27

0.20

---

0.09

c

7.00

D

E

H

E

e

0.50

9.00

H

H_E

L

D

48

13

0.45

0.75

0.60

1.00

0.08

3.5

L

y¹

---

7

---

0

1

12

e

b

0

Notes:

c

1. Dimensions D & E do not include interlead

flash.

2

A

2. Dimension b does not include dambar

protrusion/intrusion.

1

3. Controlling dimension: Millimeters

4. General appearance spec. should be based

on final visual inspection spec.

See Detail F

L

y

Seating Plane

L

1

Detail F

- 36 -

W78LE365/W78L365A

11. APPLICATION NOTE

11.1 In-system Programming Software Examples

This application note illustrates the in-system programmability of the Winbond W78E365 ROM

microcontroller. In this example, microcontroller will boot from 64KB APROM bank and waiting for a

key to enter in-system programming mode for re-programming the contents of 64KB APROM. While

entering in-system programming mode, microcontroller executes the loader program in 4KB LDROM

bank. The loader program erases the 64KB APROM then reads the new code data from external

SRAM buffer (or through other interfaces) to update the 64KB APROM.

Example 1:

;*******************************************************************************************************************

;* Example of 64K APROM program: Program will scan the P1.0. if P1.0 = 0, enters in-system

;* programming mode for updating the content of APROM code else executes the current ROM code.

;* XTAL = 16 MHz

;*******************************************************************************************************************

.chip 8052

.RAMCHK OFF

.symbols

CHPCON EQU

CHPENR EQU

BFH

F6H

C4H

C5H

C6H

C7H

SFRAL

SFRAH

SFRFD

SFRCN

EQU

ORG

0H

LJMP 100H

; JUMP TO MAIN PROGRAM

;************************************************************************

;* TIMER0 SERVICE VECTOR ORG = 000BH

;************************************************************************

ORG 00BH

CLR

TR0

; TR0 = 0, STOP TIMER0

MOV

RETI

TL0, R6

TH0, R7

;************************************************************************

;* 64K APROM MAIN PROGRAM

;************************************************************************

ORG100H

MAIN_64K:

MOV A, P1

; SCAN P1.0

ANL A, #01H

CJNE A, #01H, PROGRAM_64K ; IF P1.0 = 0, ENTER IN-SYSTEM PROGRAMMING MODE

JMP NORMAL_MODE

PROGRAM_64K:

MOV CHPENR, #87H

; CHPENR = 87H, CHPCON REGISTER WRTE ENABLE

; CHPENR = 59H, CHPCON REGISTER WRITE ENABLE

; CHPCON = 03H, ENTER IN-SYSTEM PROGRAMMING MODE

; TR = 0 TIMER0 STOP

MOV CHPENR, #59H

MOV CHPCON, #03H

MOV TCON, #00H

Publication Release Date: January 10, 2007

- 37 -

Revision A7

W78LE365/W78L365A

MOV IP, #00H

MOV IE, #82H

; IP = 00H

; TIMER0 INTERRUPT ENABLE FOR WAKE-UP FROM IDLE MODE

MOV R6, #F0H

MOV R7, #FFH

MOV TL0, R6

; TL0 = F0H

; TH0 = FFH

MOV TH0, R7

MOV TMOD, #01H

MOV TCON, #10H

MOV PCON, #01H

; TMOD = 01H, SET TIMER0 A 16-BIT TIMER

; TCON = 10H, TR0 = 1, GO

; ENTER IDLE MODE FOR LAUNCHING THE IN-SYSTEM

; PROGRAMMING

;********************************************************************************

;* Normal mode 64KB APROM program: depending user's application

;********************************************************************************

NORMAL_MODE:

.

; User's application program

.

Example 2:

;******************************************************************************************************************************

Example of 4 KB LDROM program: This loader program will erase the 64KB APROM first, then reads the new ;*

code from external SRAM and program them into 32 KB APROM bank. XTAL = 16 MHz

;*****************************************************************************************************************************

.chip 8052

.RAMCHK OFF

.symbols

CHPCON

CHPENR

SFRAL

EQU

BFH

F6H

C4H

C5H

C6H

C7H

SFRAH

SFRFD

SFRCN

ORG 000H

LJMP 100H

; JUMP TO MAIN PROGRAM

;************************************************************************

;* 1. TIMER0 SERVICE VECTOR ORG = 0BH

;************************************************************************

ORG 000BH

CLR TR0

MOV TL0, R6

MOV TH0, R7

RETI

; TR0 = 0, STOP TIMER0

;************************************************************************

;* 4KB LDROM MAIN PROGRAM

;************************************************************************

ORG 100H

- 38 -

W78LE365/W78L365A

MAIN_4K:

MOV SP, #C0H

MOV CHPENR, #87H

MOV CHPENR, #59H

; CHPENR = 87H, CHPCON WRITE ENABLE.

; CHPENR = 59H, CHPCON WRITE ENABLE.

MOV CHPCON, #03H ; CHPCON = 03H, ENABLE IN-SYSTEM PROGRAMMING.

MOV CHPENR, #00H

; DISABLE CHPCON WRITE ATTRIBUTE

MOV TCON, #00H

MOV TMOD, #01H

MOV IP, #00H

; TCON = 00H, TR = 0 TIMER0 STOP

; TMOD = 01H, SET TIMER0 A 16BIT TIMER

; IP = 00H

MOV IE, #82H

; IE = 82H, TIMER0 INTERRUPT ENABLED

MOV R6, #F0H

MOV R7, #FFH

MOV TL0, R6

MOV TH0, R7

MOV TCON, #10H

MOV PCON, #01H

; TCON = 10H, TR0 = 1, GO

; ENTER IDLE MODE

UPDATE_64K:

MOV TCON, #00H

; TCON = 00H , TR = 0 TIM0 STOP

; IP = 00H

MOV IP, #00H

MOV IE, #82H

; IE = 82H, TIMER0 INTERRUPT ENABLED

; TMOD = 01H, MODE1

MOV TMOD, #01H

MOV R6, #E0H

; SET WAKE-UP TIME FOR ERASE OPERATION, ABOUT 15 mS. DEPENDING

; ON USER'S SYSTEM CLOCK RATE.

MOV R7, #B1H

MOV TL0, R6

MOV TH0, R7

ERASE_P_4K:

MOV SFRCN, #22H

MOV TCON, #10H

MOV PCON, #01H

; SFRCN(C7H) = 22H ERASE 64K

; TCON = 10H, TR0 = 1, GO

; ENTER IDLE MODE (FOR ERASE OPERATION)

;*********************************************************************

;* BLANK CHECK

;*********************************************************************

MOV SFRCN, #0H

MOV SFRAH, #0H

MOV SFRAL, #0H

MOV R6, #FEH

MOV R7, #FFH

MOV TL0, R6

; READ 64KB APROM MODE

; START ADDRESS = 0H

; SET TIMER FOR READ OPERATION, ABOUT 1.5 µS.

MOV TH0, R7

BLANK_CHECK_LOOP:

SETB TR0

; ENABLE TIMER 0

; ENTER IDLE MODE

; READ ONE BYTE

MOV PCON, #01H

MOV A, SFRFD

CJNE A, #FFH, BLANK_CHECK_ERROR

INC SFRAL

; NEXT ADDRESS

MOV A, SFRAL

JNZ BLANK_CHECK_LOOP

INC SFRAH

MOV A, SFRAH

Publication Release Date: January 10, 2007

Revision A7

- 39 -

W78LE365/W78L365A

CJNE A, #80H, BLANK_CHECK_LOOP ; END ADDRESS = 7FFFH

JMP PROGRAM_64KROM

BLANK_CHECK_ERROR:

MOV P1, #F0H

MOV P3, #F0H

JMP $

;*******************************************************************************

;* RE-PROGRAMMING 64KB APROM BANK

;*******************************************************************************

PROGRAM_64KROM:

MOV DPTR, #0H

MOV R2, #00H

MOV R1, #00H

MOV DPTR, #0H

MOV SFRAH, R1

; THE ADDRESS OF NEW ROM CODE

; TARGET LOW BYTE ADDRESS

; TARGET HIGH BYTE ADDRESS

; EXTERNAL SRAM BUFFER ADDRESS

; SFRAH, TARGET HIGH ADDRESS

MOV SFRCN, #21H ; SFRCN(C7H) = 21 (PROGRAM 64K)

MOV R6, #BEH

MOV R7, #FFH

MOV TL0, R6

MOV TH0, R7

; SET TIMER FOR PROGRAMMING, ABOUT 50 µS.

PROG_D_64K:

MOV SFRAL, R2

MOVX A, @DPTR

; SFRAL(C4H) = LOW BYTE ADDRESS

; READ DATA FROM EXTERNAL SRAM BUFFER. BY ACCORDING USER?

; CIRCUIT, USER MUST MODIFY THIS INSTRUCTION TO FETCH CODE

; SFRFD(C6H) = DATA IN

MOV SFRFD, A

MOV TCON, #10H

MOV PCON, #01H

INC DPTR

; TCON = 10H, TR0 = 1, GO

; ENTER IDLE MODE (PRORGAMMING)

INC R2

CJNE R2, #0H, PROG_D_64K

INC R1

MOV SFRAH, R1

CJNE R1, #80H, PROG_D_64K

;*****************************************************************************

; * VERIFY 64KB APROM BANK

;*****************************************************************************

MOV R4, #03H

MOV R6, #FEH

MOV R7, #FFH

MOV TL0, R6

; ERROR COUNTER

; SET TIMER FOR READ VERIFY, ABOUT 1.5 µS.

MOV TH0, R7

MOV DPTR, #0H

MOV R2, #0H

MOV R1, #0H

MOV SFRAH, R1

; The start address of sample code

; Target low byte address

; Target high byte address

; SFRAH, Target high address

MOV SFRCN, #00H ; SFRCN = 00 (Read ROM CODE)

READ_VERIFY_64K:

MOV SFRAL, R2

; SFRAL(C4H) = LOW ADDRESS

; TCON = 10H, TR0 = 1,GO

MOV TCON, #10H

MOV PCON, #01H

INC R2

- 40 -

W78LE365/W78L365A

MOVX A, @DPTR

INC DPTR

CJNE A, SFRFD, ERROR_64K

CJNE R2, #0H, READ_VERIFY_64K

INC R1

MOV SFRAH, R1

CJNE R1, #80H, READ_VERIFY_64K

;******************************************************************************

;* PROGRAMMING COMPLETLY, SOFTWARE RESET CPU

;******************************************************************************

MOV CHPENR, #87H

MOV CHPENR, #59H

MOV CHPCON, #83H

; CHPENR = 87H

; CHPENR = 59H

; CHPCON = 83H, SOFTWARE RESET.

ERROR_64K:

DJNZ R4, UPDATE_64K ; IF ERROR OCCURS, REPEAT 3 TIMES.

.

; IN-SYSTEM PROGRAMMING FAIL, USER'S PROCESS TO DEAL WITH IT.

Publication Release Date: January 10, 2007

Revision A7

- 41 -

W78LE365/W78L365A

12. REVISION HISTORY

VERSION

DATE

PAGE

DESCRIPTION

A1

A2

A3

A4

May 14, 2003

August, 2004

April 19, 2005

July 1, 2005

-

Initial Issued

Revise the title of 9.1

Add Important Notice

Add lead free (RoHS) parts

Remove block diagram

31

41

3

A5

A6

October 2, 2006

Change operating frequency into 20MHz

Remove all Leaded package parts

December 4, 2006

3

4

Add 48-pin LQFP part.

A7

January 10, 2007

Add 48-pin LQFP package

Add 48-pin LQFP package dimension

36

Important Notice

Winbond products are not designed, intended, authorized or warranted for use as components

in systems or equipment intended for surgical implantation, atomic energy control

instruments, airplane or spaceship instruments, transportation instruments, traffic signal

instruments, combustion control instruments, or for other applications intended to support or

sustain life. Further more, Winbond products are not intended for applications wherein failure

of Winbond products could result or lead to a situation wherein personal injury, death or

severe property or environmental damage could occur.

Winbond customers using or selling these products for use in such applications do so at their

own risk and agree to fully indemnify Winbond for any damages resulting from such improper

use or sales.

Headquarters

Winbond Electronics Corporation America Winbond Electronics (Shanghai) Ltd.

27F, 2299 Yan An W. Rd. Shanghai,

200336 China

2727 North First Street, San Jose,

CA 95134, U.S.A.

No. 4, Creation Rd. III,

Science-Based Industrial Park,

Hsinchu, Taiwan

TEL: 86-21-62365999

FAX: 86-21-62365998

TEL: 1-408-9436666

TEL: 886-3-5770066

FAX: 1-408-5441798

FAX: 886-3-5665577

http://www.winbond.com.tw/

Taipei Office

Winbond Electronics Corporation Japan

Winbond Electronics (H.K.) Ltd.

9F, No.480, Rueiguang Rd.,

Neihu District, Taipei, 114,

Taiwan, R.O.C.

7F Daini-ueno BLDG, 3-7-18

Shinyokohama Kohoku-ku,

Yokohama, 222-0033

Unit 9-15, 22F, Millennium City,

No. 378 Kwun Tong Rd.,

Kowloon, Hong Kong

TEL: 852-27513100

TEL: 886-2-8177-7168

FAX: 886-2-8751-3579

TEL: 81-45-4781881

FAX: 81-45-4781800

FAX: 852-27552064

Please note that all data and specifications are subject to change without notice.

All the trademarks of products and companies mentioned in this datasheet belong to their respective owners.

- 42 -

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