LSM6DS3US datasheet(19/104 Pages) STMICROELECTRONICS

19 / 104 page

DocID028476 Rev 4

19/104

LSM6DS3US

Pin description

104

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-wire interface

serial data input (SDI_Aux)

and serial data output

(SDO_Aux)

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(2)

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)

CS_Aux

Leave unconnected(3)

Auxiliary SPI 3-wire interface

enable

NC(3)

Leave unconnected

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. Recommended 100 nF capacitor.

3. Leave pin electrically unconnected and soldered to PCB.

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