LSM6DS3TR 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). Also I²C least significant bit of the device address (SA0) - sets I²C 7-bit slave address LSB.
2	SDx	bidirectional	Mode 2: I²C serial data master (MSDA) for external sensor hub. Mode 1: unused - connect to VDDIO or GND.
3	SCx	output	Mode 2: I²C serial clock master (MSCL) for external sensor hub. Mode 1: unused - connect to VDDIO or GND.
4	INT1	output	Programmable interrupt 1 output. Configurable via INT1_CTRL and MD1_CFG for data-ready, FIFO, wake-up, tap, free-fall, 6D, step-detect, and other event sources.
5	VDDIO	power_in	Power supply for I/O pins (1.62 V min, independent of VDD). Recommended 100 nF filter capacitor to GND.
6	GND	power_in	0 V supply / ground return.
7	GND	power_in	0 V supply / ground return.
8	VDD	power_in	Main analog power supply (1.71 V to 3.6 V). Recommended 100 nF decoupling capacitor to GND.
9	INT2	bidirectional	Programmable interrupt 2 (INT2) / Data enable (DEN) input. In Mode 2 also acts as I²C master external synchronization signal (MDRDY).
10	NC	unconnected	Not internally connected. Leave pin electrically unconnected and soldered to PCB.
11	NC	unconnected	Not internally connected. Leave pin electrically unconnected and soldered to PCB.
12	CS	input	I²C/SPI mode selection and SPI chip select. High (1): SPI idle mode / I²C communication enabled. Low (0): SPI communication active / I²C disabled.
13	SCL/SPC	input	I²C serial clock (SCL) or SPI serial port clock (SPC). Muxed depending on interface selected via CS pin.
14	SDA/SDI/SDO	bidirectional	I²C serial data (SDA), SPI 4-wire serial data input (SDI), or SPI 3-wire bidirectional serial data (SDO). Function selected by CS state and SPI 3-/4-wire configuration.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

LSM6DS3TR

CAD (KiCad official)

Symbol: LSM6DS3TR
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 (102 pp, sha256 362f7b6cc1abbd0f, 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