LSM6DSTX datasheet(9/175 Pages) STMICROELECTRONICS

9 / 175 page

In the following table each mode is described for the pin connections and function.

Table 1. Pin description

Pin#

Name

Mode 1 function

Mode 2 function

Mode 3 / mode 4 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 Vdd_IO 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 Vdd_IO or GND

I²C serial clock master (MSCL)

Auxiliary SPI 3/4-wire interface serial

port clock (SPC_Aux)

INT1

Programmable interrupt in I²C and SPI

Vdd_IO(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)

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/MIPI I3CSM/SPI mode

selection

(1: SPI idle mode / I²C/MIPI

I3CSM communication enabled;

0: SPI communication mode /

I²C/MIPI I3CSM disabled)

I²C/MIPI I3CSM/SPI mode

selection

(1: SPI idle mode / I²C/MIPI

I3CSM communication enabled;

0: SPI communication mode / I²C/

MIPI I3CSM disabled)

I²C/MIPI I3CSM/SPI mode selection

(1: SPI idle mode / I²C/MIPI I3CSM

communication enabled;

0: SPI communication mode / I²C/

MIPI I3CSM disabled)

SCL

I²C/MIPI I3CSM serial clock

(SCL)

SPI serial port clock (SPC)

I²C/MIPI I3CSM serial clock (SCL)

SPI serial port clock (SPC)

I²C/MIPI I3CSM serial clock (SCL)

SPI serial port clock (SPC)

SDA

I²C/MIPI I3CSM serial data

(SDA)

SPI serial data input (SDI)

3-wire interface serial data

output (SDO)

I²C/MIPI I3CSM serial data (SDA)

SPI serial data input (SDI)

3-wire interface serial data output

(SDO)

I²C/MIPI I3CSM 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.

LSM6DSTX

Pin connections

DS14039 - Rev 1

page 9/175

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