LSM6DSOTR 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 serial data output (SDO) in SPI mode; also serves as the least-significant bit of the I2C slave address (SA0) - tied high sets I2C address 1101011b, tied low sets 1101010b.
2	SDx	bidirectional	Sensor-hub / auxiliary interface data pin. Mode 1: tie to VDDIO or GND. Mode 2: master I2C serial data (MSDA). Mode 3/4: auxiliary SPI 3/4-wire serial data input (SDI) and SPI 3-wire serial data output (SDO).
3	SCx	bidirectional	Sensor-hub / auxiliary interface clock pin. Mode 1: tie to VDDIO or GND. Mode 2: master I2C serial clock (MSCL). Mode 3/4: auxiliary SPI 3/4-wire serial port clock (SPC_Aux).
4	INT1	output	Programmable interrupt 1 output, available in both I2C and SPI modes; polarity and event mapping (data ready, FIFO threshold/full/ovr, wakeup, free-fall, tap, 6D, tilt, SMD, FSM, etc.) are register-configurable.
5	VDDIO	power_in	Power supply for the digital I/O pins. Operating range 1.62 V to 3.6 V. A 100 nF filter capacitor to GND is recommended.
6	GND	power_in	0 V supply / device ground reference.
7	GND	power_in	0 V supply / device ground reference.
8	VDD	power_in	Analog / core supply voltage. Operating range 1.71 V to 3.6 V (typ 1.8 V). A 100 nF filter capacitor to GND is recommended.
9	INT2/DEN	bidirectional	Programmable interrupt 2 (INT2) output, doubles as Data ENable (DEN) input. In Mode 2 it can also serve as MDRDY, the I2C-master external synchronization signal.
10	OCS_Aux	input	Auxiliary SPI interface chip-select / enable. In Modes 1 and 2 (no auxiliary SPI): leave electrically unconnected but soldered to the PCB.
11	SDO_Aux	tri_state	Auxiliary SPI 4-wire serial data output (SDO_Aux). In auxiliary-SPI 3-wire mode, and in Modes 1/2 that do not use the auxiliary interface, tie to VDD_IO or leave electrically unconnected but soldered to the PCB.
12	CS	input	I2C/MIPI-I3C vs SPI interface-mode select and SPI chip-select. Tie high (1) for SPI idle / I2C·I3C communication enabled; drive low (0) for SPI communication / I2C·I3C disabled.
13	SCL/SPC	input	Main host interface serial clock: I2C/MIPI I3C serial clock (SCL) when I2C/I3C is selected, or SPI serial port clock (SPC) when SPI is selected.
14	SDA/SDI/SDO	bidirectional	Main host interface serial data: I2C/MIPI I3C serial data (SDA) when I2C/I3C is selected, SPI serial data input (SDI) in 4-wire SPI mode, or 3-wire SPI serial data output (SDO) when 3-wire SPI is enabled via CTRL3_C (SIM).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

LSM6DSOTR

CAD (KiCad official)

Symbol: LSM6DSOTR
Footprint: Package_LGA:Bosch_LGA-14_3x2.5mm_P0.5mm
3D model: LGA-14(2.5x3) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lsm6dsotr.step`	118 KB	You want the bare part, or you mark your own boards.
`lsm6dsotr-etched.step`	1.7 MB	You want the part with `LSM6DSOTR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 431 faces against 78 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: STMicroelectronics datasheet (172 pp, sha256 1074e39739595e97, 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