W83772G现货热卖使用介绍供应商报价哪里找芯片批发报价-中国IC网-芯三七

W83772G

Winbond

H/W Monitoring IC

Date: 05/22/2006 Revision: 1.0

W83772G

W83772G Data Sheet Revision History

VERSION

ON WEB

PAGES

DATES

VERSION

MAIN CONTENTS

1

2

3

n.a.

07/26/05

08/10/05

08/25/05

0.1

NA

For Winbond internal use only

0.2

For Winbond internal use only

0.31

1. Change part number from W83L772G to

W83772G.

4

5

10/31/05

03/01/06

0.32

0.5

2. Modify the top marking

Preliminary datasheet.

1. Update Chap 3.

2. Update Chap7.6 and Chap 7.7

description.

3. Add Chap 7.3

6

05/22/06

1.0

4. Add Chap 8: PCB Layout Guide

5. Update Chap 9

6. Update Chap 10.2: DC Characteristic

Table for SST, ADDx and D+ pin

7. Add Chap 11: Order Information

Publication Release Date: May 22, 2006

Version: 1.0

- I -

W83772G

Table of Content-

1.

2.

GENERAL DESCRIPTION ......................................................................................................... 1

FEATURES................................................................................................................................. 1

2.1

2.2

2.3

Monitoring Items - Temperature ..............................................................................................1

General.....................................................................................................................................1

Package....................................................................................................................................1

3.

4.

5.

6.

7.

KEY SPECIFICATIONS.............................................................................................................. 2

BLOCK DIAGRAM ...................................................................................................................... 2

PIN CONFIGURATION............................................................................................................... 3

PIN DESCRIPTION..................................................................................................................... 3

FUNCTIONAL DESCRIPTION.................................................................................................... 4

7.1

7.2

7.3

7.4

7.5

7.6

7.7

General Description..................................................................................................................4

Access Interface.......................................................................................................................4

Power-On Reset.......................................................................................................................4

Measured Temperature Data Format......................................................................................5

Sensor Error Conditions...........................................................................................................5

Conversion Time ......................................................................................................................5

Address Selection ....................................................................................................................5

8.

PCB LAYOUT GUIDE................................................................................................................. 7

COMMAND SUMMARY.............................................................................................................. 8

ELECTRICAL CHARACTERISTIC ............................................................................................. 9

10.1 Absolute Maximum Ratings.....................................................................................................9

10.2 DC Characteristics ...................................................................................................................9

10.3 AC Characteristics..................................................................................................................10

ORDER INSTRUCTION............................................................................................................ 11

TOP MARKING......................................................................................................................... 11

PACKAGE SPECIFICATION.................................................................................................... 12

9.

10.

11.

12.

13.

- II -

W83772G

1. GENERAL DESCRIPTION

W83772G is a 2-channel temperature sensor with Simple Serial Transport (SST) interface. W83772G

has an on-chip thermal sensor and a remote temperature sensor. The remote temperature sensor

input could be connected to thermal diode or transistor such as 2N3904. A 10-bit ADC (Analog-to-

Digital Converter) is built inside W83772G to convert the monitored temperature value with 0.125°C

resolution.

W83772G is a high precision, low-power consumption IC supporting 1.5V SST interface. The package

type is 8-pin, TSSOP, and the operating voltage is 3.3 V ±10%.

2. FEATURES

2.1 Monitoring Items - Temperature

•

Measure temperature with high accuracy

One on-chip thermal sensor

One remote temperature sensor

2.2 General

•

3.3V±10% VCC operation

16-bit two’s complement data format, 0.125°C resolution

Two address selection pins

Support Simple Serial Transport interface

2.3 Package

•

8-pin TSSOP

Publication Release Date: May 22, 2006

Version: 1.0

- 1 -

W83772G

3. KEY SPECIFICATIONS

•

On-die temperature range and accuracy

0°C to 70°C

± 3°C (over entire range)

± 1°C (40°C to 70°C)

•

Remote temperature range and accuracy

-30°C to +127.875°C

± 3°C (over entire range)

± 1°C (40°C to 90°C)

•

Supply voltage

3.3V ±10%

Operating supply current

5.6 mA typ.

ADC resolution

10 Bits

Operating Temperature Range

0°C to 70°C

4. BLOCK DIAGRAM

VCC

xI

Command

Coder / Decoder

SST

Control

Logic

SST

Local / Remote

BANK

SW

Temperature

ADD0

ADD1

Registers

D+

D-

Configuration

Registers

Address Selector

ADC

Senso

rCircuit

Status

Registers

Internal

Thermal

Diode

- 2 -

W83772G

5. PIN CONFIGURATION

VCC

SST

1

2

3

4

8

7

6

5

GND

D+

ADD0

RES

W83772G

D-

ADD1

6. PIN DESCRIPTION

PIN NAME

NO

PIN TYPE

DESCRIPTION

VCC

1

POWER

DC Power Supply Voltage Input 3.3V±10%.

Power Supply Ground

GND

D+

2

3

4

GROUND

AIN

Connect to Thermal Diode Anode

Connect to Thermal Diode Cathode

D-

AIN

ADD1

RES

5

6

7

IO

For Address select

Reserved

ADD0

IO

For Address select

SST

8

Simple Serial Transport (SST) Interface

Publication Release Date: May 22, 2006

- 3 -

Version: 1.0

W83772G

7. FUNCTIONAL DESCRIPTION

7.1 General Description

The W83772G provides one remote temperature sensor input which could be connected to 2N3904

transistors, or CPU/GPU thermal diode, and one local on-die thermal sensor to detect ambient

temperature.

The data format of monitored temperature is 16-bit 2’s complement with 1-wire SST access interface.

7.2 Access Interface

The W83772G provides SST interface to read/write internal registers, and the SST address is

xxxxxxxxb, respectively. Please refer to 7.7 Address Selection.

7.3 Power-On Reset

The power-on reset threshold is 2.7V (typical). When Vcc crosses this threshold, the internal reset

signal will be asserted for 4mS. During this time period, W83772G is in the reset state. When the

internal reset signal is de-asserted, W83772G is in the operating state.

In the operating state, if Vcc drops below 2.4V and then rises above 2.7, the internal reset signal will

be asserted immediately. Fig 1 illustrates the reset mechanism.

.

3.3V

VCC

2.7V

2.4V

0

3.3V

2.7V

Internal Reset Signal

4ms

Figure 1.

- 4 -

W83772G

7.4 Measured Temperature Data Format

The W83772G temperature data format of both remote and local temperature are 16-bit two’s

complement format.

Table 1 shows temperature data with 16-bit two’s complement data format.

TEMPERATURE

+80°C

16-BIT DIGITAL OUTPUT

0001 0100 0000 0000

0001 0011 1111 1000

0000 0000 0100 0000

0000 0000 0000 0000

1111 1111 1100 0000

1111 1110 1100 0000

+79.875°C

+1°C

+0°C

-1°C

- 5°C

Table 1. Temperature Data Format

7.5 Sensor Error Conditions

When the external diode is opened or shorted, the W83772G will return 0x8001 in response to either

the SST command GetExtTemp() or GetAllTemp() command. It will also return 0x8002/0x8003 when

detecting temperature below -128°C /above +128°C.

7.6 Conversion Time

W83772G provide 250mS conversion time for monitoring all temperature readings. The conversion

time is related to the internal self-generated clock. The internal clock frequency is dependent on the

temperature. There is 10% frequency deviation in the operating temperature range of 0°C and 70°C.

7.7 Address Selection

W83772G has two address pins. These pins may be either tied to Vcc, ground or left open. After the

internal reset ends, W83772G pin ADD0/ADD1 will start to drive and sink current to detect the pin

status – HIGH, LOW or FLOATING and then decide the SST address of W83772G. The address will

be retained as long as the VCC of W83772G is maintained. The recommended pull-up or pull-down

resistor value is 330Ω. (Please refer to the DC specification for the source and sink current.) The pull-

up power plane must be the same as the VCC power of W83772G.

Publication Release Date: May 22, 2006

- 5 -

Version: 1.0

W83772G

VCC

R=330Ω

VCC

GND

VCC

GND

ADDx

R=330Ω

W83772G

VCC

GND

W83772G

ADDx

NC(Floating)

Figure 2.

The address mapping is shown in the following table.

ADD0

Ground

Open

Vcc

ADD1

ADDRESS

Ground

open

Vcc

0x48

0x49

0x4a

0x4b

0x4c

0x4d

0x4e

0x4f

Ground

Open

Vcc

Ground

Open

Vcc

0x50

- 6 -

W83772G

8. PCB LAYOUT GUIDE

Pin 3 & Pin 4 are typically connected to a thermal diode. Here are some recommendations for optimal

operation:

a) Place remote diode as close as possible to W83772G.

b) Route D+ and D- lines away from clock generators, memory buses, or any high frequency buses.

c) Place shield traces, which are connecting to board ground, flanking D+/D- to shield the noise.

d) It is recommended that the bypass capacitor with 2200pF should be placed close to W83772G to

filter the noise from motherboard digital signals.

e) Place a 0.1uF bypass capacitor close to the VCC pin.

The connection diagram is shown as the following.

GND

W83772G

D+

2200pf

D-

GND

Figure 3.

Publication Release Date: May 22, 2006

- 7 -

Version: 1.0

W83772G

9. COMMAND SUMMARY

The following table shows the supported SST commands. Contact Winbond for details of the

commands. NDA may be required to furnish the information.

COMMAND

DESCRIPTION

Ping()

Returns a non-zero FCS over the header

ResetDevice()

GetIntTemp()

GetExtTemp()

GetAllTemps()

W83772G will perform a functional reset similar to power-on reset

Returns the temperature of W83772G internal thermal sensor

Returns the temperature of W83772G external thermal diode

Returns a 4-byte block of data (internal plus external temperatures)

- 8 -

W83772G

10. ELECTRICAL CHARACTERISTIC

10.1 Absolute Maximum Ratings

PARAMETER

RATING

UNIT

Power Supply Voltage

3.63

V

Operating Temperature

70

° C

Storage Temperature

-30 to +127.875

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

of the device.

10.2 DC Characteristics

(Ta = 0° C to 70° C, Vcc = 3.3V ± 10%, GND = 0V)

PARAMETER

SYM.

MIN.

TYP.

MAX.

UNIT

CONDITIONS

SST - This set of DC electrical specifications is used with devices normally operating from a +1.5V

interface supply voltage. The following voltage and current requirements refer to the SST electrical

model. For the purpose of bus capacitance, the electrical model is a two-node circuit. One node is

counted for each client and one node for the system host. V_SSTIOis the internally generated +1.5V

supply voltage for the SST interface.

IO pad power

supply

V_SSTIO

1.40

1.50 1.60

Input Voltage range Vin

V_SSTIO+0.3

0.65

Input Low

Vt-

0.40

0.8

V

V_SSTIO= 1.4V (MIN)

_SSTIO= 1.6V (MAX)

V_SSTIO= 1.4V (MIN)

_SSTIO= 1.6V (MAX)

Threshold Voltage

V

Input High

Vt+

1.10

Threshold Voltage

V

Hysteresis

VTH

0.15

-6.0

V

Output source

current

Isource

mA

Voh=1.1V, V_SSTIO=1.4V

Input High Leakage ILIH

Input Low Leakage ILIL

+10

-10

V_SST= V_SSTIO

V_SST= 0V

μA

Publication Release Date: May 22, 2006

Version: 1.0

- 9 -

W83772G

DC Characteristics, continued

PARAMETER

ADDx

SYM.

MIN. TYP.

MAX.

UNIT

CONDITIONS

Power Supply Voltage

Input Voltage range

Input High Voltage

Input Low Voltage

Output source current

Output sink current

D+

Vcc

2.97

-0.3

1.95

3.30 3.63

V

Vin

Vcc+0.3

V

Vth

V

1.35

-3

V

Isource -0.7

mA

Voh=2.4V, Vcc=2.97V

Vol=0.4V, Vcc=2.97V

Isink

2

0.7

Ouput Current I1

Output Current I2

I1

I2

15

uA

Vcc = 3.3 V

165

10.3 AC Characteristics

Refer to the specification of Simple Serial Transport (SST).

- 10 -

W83772G

11. ORDER INSTRUCTION

PART NO.

PACKAGE

REMARKS

W83772G

TSSOP8

Pb-free Package

12. TOP MARKING

The top marking of W83772G

7 7 2 W

L U A

5 4 0 A

1st line: type number: 772G

2nd line: assembly house ID + internal code L UA

L: Lingsen

3rd line: Tracking code 540 G

540: packages made in '05, week 40

A: IC revision

Publication Release Date: May 22, 2006

Version: 1.0

- 11 -

W83772G

13. PACKAGE SPECIFICATION

TSSOP 8L 3mm X 3mm

- 12 -

W83772G

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.

Publication Release Date: May 22, 2006

- 13 -

Version: 1.0

型号:	W83772G
是否Rohs认证：	符合
生命周期：	Obsolete
IHS 制造商：	NUVOTON TECHNOLOGY CORP
包装说明：	TSSOP8,.19
Reach Compliance Code：	compliant
风险等级：	5.59
最大精度（摄氏度）：	3 Cel
主体宽度：	3 mm
主体高度：	0.86 mm
主体长度或直径：	3 mm
外壳：	PLASTIC
安装特点：	THROUGH HOLE MOUNT
位数：	10
端子数量：	8
最大工作电流：	5.6 mA
最高工作温度：	70 °C
最低工作温度：
输出接口类型：	SPI INTERFACE
封装主体材料：	PLASTIC/EPOXY
封装等效代码：	TSSOP8,.19
封装形状/形式：	RECTANGULAR
电源：	3.3 V
传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
子类别：	Other Sensors
最大供电电压：	3.63 V
最小供电电压：	2.97 V
表面贴装：	NO
端接类型：	SOLDER
Base Number Matches：	1

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