2

Pin description

SDA

GND

SCL

1

2

3

6

5

4

ALERT / INT

Addr

Pin number

Name

Function

1

SCL

SMBus/I²C serial interface clock

2

ALERT / INT Open-drain interrupt output. The output supports the SMBus Alert (ARA).

3

4

Addr

SMBus/I²C address selection. The pin at power-up determines the SMBus slave address

according to the connection shown in Table 2.

5

GND

0 V supply

6

SDA

SMBus/I²C serial data line

Addr pin connection

SMBus slave address

0111 000 (0x70 Write, 0x71 Read)

GND

0111 111 (0x7E Write, 0x7F Read)

STTS22H

Pin description

DS12606 - Rev 4

page 4/29