LSM6DSM datasheet(19/113 Pages) STMICROELECTRONICS

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DocID028165 Rev 2

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LSM6DSM

Pin description

113

Table 2. Pin description

Pin#

Name

Mode 1 function

Mode 2 function

Mode 3 function

SDO/SA0

SPI 4-wire interface serial

data output (SDO)

I2C least significant bit of the

device address (SA0)

SPI 4-wire interface serial data

output (SDO)

I2C least significant bit of the

device address (SA0)

SPI 4-wire interface serial

data output (SDO)

I2C least significant bit of the

device address (SA0)

SDx

Connect to VDDIO or GND

I2C serial data master (MSDA)

Auxiliary SPI 3/4-wire

interface serial data input

(SDI)

and SPI 3-wire serial data

output (SDO)

SCx

Connect to VDDIO or GND

I2C serial clock master (MSCL)

Auxiliary SPI 3-wire interface

serial port clock (SPC_Aux)

INT1

Programmable interrupt 1

VDDIO(1)

Power supply for I/O pins

GND

0 V supply

GND

0 V supply

VDD(1)

Power supply

INT2

Programmable interrupt 2

(INT2) / Data enable (DEN)

Programmable interrupt 2

(INT2)/ Data enable (DEN)/

I2C master external

synchronization signal (MDRDY)

Programmable interrupt 2

(INT2)/ Data enable (DEN)

OCS_Aux Leave unconnected(2)

Leave unconnected(2)

Auxiliary SPI 3/4-wire

interface enable

SDO_Aux

Connect to VDD_IO or leave

unconnected(2)

Connect to VDD_IO or leave

unconnected(2)

Auxiliary SPI 3-wire interface:

leave unconnected(2)

Auxiliary SPI 4-wire interface:

serial data output (SDO_Aux)

I2C/SPI mode selection

(1: SPI idle mode / I2C

communication enabled; 0:

SPI communication mode /

I2C disabled)

I2C/SPI mode selection

(1: SPI idle mode / I2C

communication enabled;

0: SPI communication mode /

I2C disabled)

I2C/SPI mode selection

(1: SPI idle mode / I2C

communication enabled;

0: SPI communication mode /

I2C disabled)

SCL

I2C serial clock (SCL)

SPI serial port clock (SPC)

I2C serial clock (SCL)

SPI serial port clock (SPC)

I2C serial clock (SCL)

SPI serial port clock (SPC)

SDA

I2C serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data

output (SDO)

I2C serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data

output (SDO)

I2C serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data

output (SDO)

1. Recommended 100 nF filter capacitor.

2. Leave pin electrically unconnected and soldered to PCB.

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