STTS751 datasheet(7/36 Pages) STMICROELECTRONICS

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STTS751

Description

Doc ID 16483 Rev 5

7/36

Figure 2.

Pinout - SOT23-6L and UDFN-6L

SDA

VDD

GND

SCL

EVENT

Addr/Therm

SDA

VDD

GND

SCL

EVENT

Addr/Therm

SOT23-6L

UDFN-6L

AM03029v1

Table 3.

Pin descriptions

Name

Description

SOT23-6L UDFN-6L

Addr/Therm

Open-drain output that can be used to turn on/off a fan or throttle a CPU

clock in the event of an overtemperature condition.

The pin at power-up determines the SMBus slave address according to the

pull-up resistor value as shown in Table 1.

This pin must have a pull-up resistor connected to the same voltage as VDD

or tied to GND (pin cannot float).

Total capacitance on this pin must be <100 pF.

Note: By tying Addr/Therm to ground, the device functions as one address

device only. The Therm functionality is then not available. The address for

device STTS751-0 is 72h and the address for device STTS751-1 is 76h.

GND

VDD

Power supply VDD

SCL

SMBus clock

EVENT

Open-drain interrupt output. Output supports the SMBus Alert (ARA).

Note: This pin may not float.

SDA

SMBus data input/output

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