LSM6DSM Datasheet, PDF (19/113 Pages) STMicroelectronics – always-on 3D accelerometer and 3D gyroscope

LSM6DSM
Pin description
Pin# Name
Table 2. Pin description
Mode 1 function
Mode 2 function
Mode 3 function
SPI 4-wire interface serial SPI 4-wire interface serial data SPI 4-wire interface serial
data output (SDO)
output (SDO)
1 SDO/SA0 _{I2C least significant bit of the I2C least significant bit of the}
data output (SDO)
I²C least significant bit of the
device address (SA0)
device address (SA0)
device address (SA0)
Auxiliary SPI 3/4-wire
interface serial data input
2
SDx Connect to VDDIO or GND I²C serial data master (MSDA) ^(SDI)
and SPI 3-wire serial data
output (SDO)
3
SCx
Connect to VDDIO or GND
I²C serial clock master (MSCL)
Auxiliary SPI 3-wire interface
serial port clock (SPC_Aux)
4
INT1
5 VDDIO⁽¹⁾
Programmable interrupt 1
Power supply for I/O pins
6
GND
0 V supply
7
GND
8
VDD⁽¹⁾
0 V supply
Power supply
Programmable interrupt 2
9
INT2
Programmable interrupt 2 (INT2)/ Data enable (DEN)/
(INT2) / Data enable (DEN) I²C master external
Programmable interrupt 2
(INT2)/ Data enable (DEN)
synchronization signal (MDRDY)
10 OCS_Aux Leave unconnected⁽²⁾
Leave unconnected⁽²⁾
Auxiliary SPI 3/4-wire
interface enable
11
SDO_Aux
Connect to VDD_IO or leave
unconnected⁽²⁾
Connect to VDD_IO or leave
unconnected⁽²⁾
I²C/SPI mode selection
I²C/SPI mode selection
(1: SPI idle mode / I²C
(1: SPI idle mode / I²C
12
CS _{communication enabled; 0: communication enabled;}
SPI communication mode / 0: SPI communication mode /
I²C disabled)
I²C disabled)
I²C serial clock (SCL)
I²C serial clock (SCL)
13
SCL
SPI serial port clock (SPC) SPI serial port clock (SPC)
I²C serial data (SDA)
I²C serial data (SDA)
14
SDA ^{SPI serial data input (SDI) SPI serial data input (SDI)}
3-wire interface serial data 3-wire interface serial data
output (SDO)
output (SDO)
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 serial clock (SCL)
SPI serial port clock (SPC)
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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