LSM9DS1 datasheet(11/72 Pages) STMICROELECTRONICS

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LSM9DS1

Pin description

Table 2. Pin description

Pin #

Name

Function

VDDIO(1)

1. Recommended 100 nF filter capacitor.

Power supply for I/O pins

SCL/SPC

I2C serial clock (SCL) / SPI serial port clock (SPC)

VDDIO(2)

2. Recommended 100 nF filter capacitor.

Power supply for I/O pins

SDA/SDI/SDO

I2C serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data output (SDO)

5SDO_A/G

SPI serial data output (SDO) for the accelerometer and gyroscope

I2C least significant bit of the device address (SA0) for the accelerometer

and gyroscope

6SDO_M

SPI serial data output (SDO) for the magnetometer

I2C least significant bit of the device address (SA0) for the magnetometer

CS_A/G

SPI enable

I2C/SPI mode selection for the accelerometer and gyroscope

(1: SPI idle mode / I2C communication enabled;

0: SPI communication mode / I2C disabled)

8CS_M

SPI enable

I2C/SPI mode selection for the magnetometer

(1: SPI idle mode / I2C communication enabled;

0: SPI communication mode / I2C disabled)

DRDY_M

Magnetic sensor data ready

INT_M

Magnetic sensor interrupt

INT1_A/G

Accelerometer and gyroscope interrupt 1

INT2_A/G

Accelerometer and gyroscope interrupt 2

DEN_A/G

Accelerometer and gyroscope data enable

RES

Reserved. Connected to GND.

RES

Reserved. Connected to GND.

RES

Reserved. Connected to GND.

RES

Reserved. Connected to GND.

RES

Reserved. Connected to GND.

GND

0 V supply

GND

0 V supply

CAP

Connected to GND with ceramic capacitor(3)

3. 10 nF (±10%), 16 V. 1 nF minimum value has to be guaranteed under 11 V bias condition.

VDD(4)

4. Recommended 100 nF plus 10 µF capacitors.

Power supply

VDD(5)

5. Recommended 100 nF plus 10 µF capacitors.

Power supply

Capacitor connection (C1 = 100 nF)

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