1

2

3

4

8

7

6

5

V+

SCL

GND

DX1

DX2

DX3

DX4

SDA

TMP422

TMP422-EP

SBOS577

– SEPTEMBER 2011

www.ti.com

PIN CONFIGURATION

DCN PACKAGE

SOT23-8

(TOP VIEW)

PIN ASSIGNMENTS

TMP422

NO.

NAME

DESCRIPTION

1

DX1

Channel 1 remote temperature sensor connection pin. Also sets the TMP422 address; see Table 10.

2

DX2

Channel 1 remote temperature sensor connection pin. Also sets the TMP422 address; see Table 10.

3

DX3

Channel 2 remote temperature sensor connection pin. Also sets the TMP422 address; see Table 10.

4

DX4

Channel 2 remote temperature sensor connection pin. Also sets the TMP422 address; see Table 10.

5

GND

Ground

6

SDA

Serial data line for SMBus, open-drain; requires pull-up resistor to V+.

7

SCL

Serial clock line for SMBus, open-drain; requires pull-up resistor to V+.

8

V+

Positive supply voltage (2.7V to 5.5V)

4

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Copyright

© 2011, Texas Instruments Incorporated

Product Folder Link(s): TMP422-EP