LSM6DSRTR from STMicroelectronics, in a LGA-14(2.5x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	SDO/SA0	bidirectional	SPI 4-wire interface serial data output (SDO) / I2C least significant bit of the device address (SA0). Function is muxed based on selected serial interface mode.
2	SDx	bidirectional	Mode 1: connect to VDDIO or GND. Mode 2: I2C serial data master (MSDA). Mode 3/4: auxiliary SPI 3/4-wire serial data input (SDI) and SPI 3-wire serial data output (SDO).
3	SCx	bidirectional	Mode 1: connect to VDDIO or GND. Mode 2: I2C serial clock master (MSCL). Mode 3/4: auxiliary SPI 3/4-wire serial port clock (SPC_Aux).
4	INT1	output	Programmable interrupt 1 output in I2C and SPI modes. Used to signal events such as data-ready, wakeup, tap, free-fall, etc.
5	VDDIO	power_in	Power supply for I/O pins. Recommended 100 nF filter capacitor to GND.
6	GND	power_in	0 V supply (ground reference).
7	GND	power_in	0 V supply (ground reference).
8	VDD	power_in	Analog power supply, 1.71 V to 3.6 V. Recommended 100 nF filter capacitor to GND.
9	INT2	bidirectional	Programmable interrupt 2 (INT2) / Data enable (DEN). In Mode 2 also serves as I2C master external synchronization signal (MDRDY).
10	OCS_Aux	input	Mode 1/2: leave unconnected (soldered to PCB). Mode 3/4: auxiliary SPI 3/4-wire interface enable (chip select).
11	SDO_Aux	bidirectional	Mode 1/2: connect to VDD_IO or leave unconnected. Mode 3/4: auxiliary SPI 4-wire serial data output (SDO_Aux); leave unconnected when using auxiliary SPI 3-wire interface.
12	CS	input	I2C/MIPI I3C/SPI mode selection. 1: SPI idle mode / I2C/MIPI I3C communication enabled. 0: SPI communication mode / I2C/MIPI I3C disabled.
13	SCL/SPC	input	I2C/MIPI I3C serial clock (SCL) / SPI serial port clock (SPC). Muxed function based on selected serial interface.
14	SDA/SDI/SDO	bidirectional	I2C/MIPI I3C serial data (SDA) / SPI serial data input (SDI) / SPI 3-wire interface serial data output (SDO).

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	LGA-14(2.5x3)
Category	Sensor
Pins	14

Ordering variants

Same part, different packaging or reel option.

LSM6DSRTR

CAD (KiCad official)

Symbol: LSM6DSRTR
Footprint: Package_LGA:Bosch_LGA-14_3x2.5mm_P0.5mm
3D model: LGA-14(2.5x3) (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: STMicroelectronics datasheet (166 pp, sha256 7f08c9bc2ede9374, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF