Datasheet > W83L785TG-L

W83L785TG-L

更新时间： 2024-02-03 12:57:11

品牌	Logo	应用领域
华邦 - WINBOND		/
页数	文件大小	规格书
18页	318K
描述
Sensor/Transducer,

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技术参数
数据手册

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W83L785TG-L 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.84	传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
Base Number Matches：	1

W83L785TG-L 数据手册

W83L785TS-L/TG-L

6. FUNCTIONAL DESCRIPTION

6.1 General Description

Winbond W83L785TS-L/TG-L, a low-cost, fully integrated temperature sensor, issues an alert signal

when the monitored temperature exceeds the threshold. W83L785TS-L/TG-L provides 1 remote

temperature sensor which could be connected to CPU thermal diode. There is 1 dedicated OFFSET/

FAULT_LIMIT pin to compensate inaccuracy of CPU temperature by adjusting external two serial

resistors and set up temperature fault threshold. When W83L785TS-L/TG-L starts the monitoring

functions, the Watch Dog machine monitors every function and stores the value to registers. If the

monitored value exceeds the limit value, the interrupt status will be set to 1. W83L785TS-L/TG-L

communicates over a two-wire serial interface compatible with SMBus standards.

6.2 Access Interface

W83L785TS-L/TG-L provides I²C Serial Bus to read/write internal registers. In the W83L785TS-L/TG-L,

the I²C address defined value is 0101110.

6.2.1 The first serial bus access timing is shown as follows:

(a) Serial bus write to internal address register followed by the data byte

SCL

SDA

R/W

Start By

Master

Ack

Frame 1

Frame 2

785TR

Serial Bus Address Byte

Internal Index Register Byte

SCL(Continued)

SDA (Continued)

Ack

Stop

785TR

Master

Frame 3

Data Byte

Figure 1. Serial Bus Write to Internal Address Register followed by the Data Byte

(b) Serial bus read form internal address register followed by the data byte

SCL

SDA

R/W

ack

Frame 1

Frame 2

785TR

Serial Bus Address Byte

785TR

Internal Index Register Byte

SCL(Continued)

SDA(Continued)

R/W

Repeat start

by Master

Ack

Stop by

Master

Nack

ack

Data Byte from 785TR

784R

Frame 3

Serial Bus Byte

Frame 4

Master

785TR

Figure 2. Serial Bus read from Internal Address Register followed by the Data Byte

Publication Release Date: April, 2006

Revision 1.1

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