Datasheet > F75383M

F75383M

更新时间： 2022-12-18 01:03:49

品牌	Logo	应用领域
精拓 - FINTEK		传感器温度传感器
页数	文件大小	规格书
21页	659K
描述
±1oC Accuracy Temperature Sensor IC Datasheet

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数据手册

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F75383M 数据手册

F75383/F75384

PIN NO

PIN NAME

VCC

TYPE

PWR

AIN

PWR

3VCC

DESCRIPTION

Power Pin

D+

D-

Positive connection to remote temperature sensor (ex: thermal diode anode)

Negative connection to remote temperature sensor(ex: thermal diode

AIN

cathode)

THERM#

3VCC

Active LOW output. This pin will be logic low when the temperature exceeds

OD₁₂

its limit.

GND

3VCC

Ground

PWR

OD₁₂

ALERT#

SDA

Active LOW output. Used as SMBus alert or Interrupt

Serial bus data

IN_ts/OD₁₂

IN_ts

SCL

Serial bus clock

6. Functional Description

6.1 General Description

The F75383/F75384 is a simple temperature sensor with warning signal output. It includes a local and a remote temperature sensor.

Both measured temperature are compared with its high, low and THERM limits which are stored in the registers. When one or more

out-of-limit events occur, the flags in Status Register will be set and that may cause ALERT output to low. Also, measured

temperature exceeding THERM limit may cause THERM output to low.

6.2 The warning message

Pin4 and pin6 act as warning message when the temperature exceeds it threshold point.

6.3 Access Interface

The F75383/F75384 can be connected to a compatible 2-wire serial system management bus as a slave device under the control of

the master device, using two device terminals SCL and SDA. The F75383/F75384 supports SMBus protocol of, “Write Byte”, “Read

Byte”, both with or without Packet Error checking(PEC) which is calculated using CRC-8. For detail information about PEC, please

check SMBus 1.1 specification. F75383/F75384 supports 25ms timeout for no activity on the SMBus. This timeout function is

programmed at 22h bit7 and default is disabled. F75383/F75384 also supports Alert Response Address(ARA) protocol.

The operation of the protocol is described with details in the following sections.

F75383/F75384

-3-

July, 2007

V0.32P

1...4 5 678 9 10...21

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