HANBit
HMF51232M4D
FLASH-ROM MODULE 2MByte (512K x 32-Bit)
Part No. HMF51232M4D
GENERAL DESCRIPTION
The HMF51232M4D is a high-speed flash read only memory (FROM) module containing 524,288 words organized in a x32bit
configuration. The module consists of four 512Kx 8 FROM mounted on a 72-pin, single-sided, FR4-printed circuit board.
Commands are written to the command register using standard microprocessor write timings.
Register contents serve as input to an internal state-machine, which controls the erase and programming circuitry. Write cycles
also internally latch addresses and data needed for the programming and erase operations. Reading data out of the device is
similar to reading from 12.0V flash or EPROM devices.
Four chip enable inputs, (/CE_UU2, /CE_UM2, /CE_LM2, /CE_LL2) are used to enable the module’s 4 bytes independently.
Output enable (/OE) and write enable (/WE) can set the memory input and output.
When FROM module is disable condition, the module is becoming power standby mode, system designer can get low-power
design.
All module components may be powered from a single +5V DC power supply and all inputs and outputs are TTL-compatible.
PIN ASSIGNMENT
FEATURES
w
Access time : 55,70, 90 and 120ns
w
High-density 2MByte design
w
High-reliability, low-power design
w
Single + 5V
±
0.5V power supply
w
Easy memory expansion
wAll
inputs and outputs are TTL- compatible
w
FR4-PCB design
w
Low profile 72-pin SIMM
w
Minimum 1,000,000 write/erase cycle
w
Sector erases architecture
w
Sector group protection
w
Temporary sector group unprotection
w
Part Identification
HMF51232M4D : Gold Plate Lead
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
SYMBOL
Vss
A3
A2
A1
A0
Vcc
A11
/OE
A10
Vcc
NC
/CE_LL2
DQ7
DQ0
DQ1
DQ2
DQ6
DQ5
DQ4
DQ3
/WE
A17
A14
A13
PIN
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
SYMBOL
Vcc
DQ8
DQ9
DQ10
NC
Vcc
/CE_LM2
DQ15
DQ14
DQ13
DQ12
DQ11
A18
A16
Vss
A6
Vcc
A5
A4
Vcc
NC
/CE_UM2
DQ23
DQ16
PIN
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
SYMBOL
DQ17
DQ18
DQ22
DQ21
DQ20
DQ19
Vcc
A15
A12
A7
Vcc
A8
A9
DQ24
DQ25
DQ26
NC
/CE_UU2
DQ31
DQ30
DQ29
DQ28
DQ27
Vss
OPTIONS
w
Timing
55ns access
70ns access
90ns access
120ns access
w
Package
72-pin SIMM
MARKING
- 55
- 70
- 90
- 120
18
19
20
21
22
23
24
M
72-PIN SIMM
TOP VIEW
FUNCTIONAL BLOCK DIAGRAM
URL:
www.hbe.co.kr
REV.02(August,2002)
1
HANBit Electronics co., Ltd.
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
