AIS2IH datasheet(4/63 Pages) STMICROELECTRONICS

Part #	AIS2IH

Description	MEMS digital output motion sensor: high-performance 3-axis accelerometer for automobile applications

PDF	63 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1.2

Pin description

Figure 2. Pin connections

GND

RES

SCL/SPC

SDO/SA0

SDA/SDI/SDO

(TOPVIEW)

DIRECTION OF THE

DETECTABLE

ACCELERATIONS

VDD

(BOTTOM VIEW)

Vdd_IO

Table 1. Pin description

Pin #

Name

Function

SCL

SPC

I²C serial clock (SCL)

SPI serial port clock (SPC)

2(1)

SPI enable

I²C/SPI mode selection

(1: SPI idle mode / I²C communication enabled;

0: SPI communication mode / I²C disabled)

3(1)

SDO

SA0

SPI serial data output (SDO)

I²C less significant bit of the device address (SA0)

SDA

SDI

SDO

I²C serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data output (SDO)

Internally not connected. Can be tied to VDD, Vdd_IO, or GND.

GND

0 V supply

RES

Connect to GND

GND

0 V supply

VDD

Power supply

Vdd_IO

Power supply for I/O pins

INT2

Interrupt pin 2. Clock input when selected in single data conversion on demand.

INT1

Interrupt pin 1

1. SDO/SA0 and CS pins are internally pulled up. Refer to Table 2 for the internal pull-up values (typ).

AIS2IH

Pin description

DS12421 - Rev 4

page 4/63

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