BMI088 from Bosch Sensortec, in a LGA-16(3x4.5). 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	INT2	bidirectional	Accelerometer interrupt pin #2 (INT2_ACCEL). Digital I/O. If unused, leave unconnected (DNC).
2	NC	unconnected	No connect. Tied to GND in the reference connection diagrams.
3	VDD	power_in	Main power supply for analog and digital domains. Operating range 2.4 V to 3.6 V. Decouple with 100 nF to GND.
4	GNDA	power_in	Ground reference for the analog (VDD) domain.
5	CSB2	input	SPI chip select for the gyroscope (active low). In I2C mode this pin is DNC (float).
6	GNDIO	power_in	Ground reference for the digital I/O (VDDIO) domain.
7	PS	input	Protocol select for the gyroscope. Tie to GND to select SPI, tie to VDDIO to select I2C.
8	SCL/SCK	input	Serial clock. Acts as SPI SCK in SPI mode, or I2C SCL in I2C mode.
9	SDA/SDI	bidirectional	Serial data. I2C: SDA serial data I/O; SPI 4-wire: SDI serial data input; SPI 3-wire: SDA serial data I/O.
10	SDO2	output	SPI serial data output for the gyroscope (MISO). In I2C mode this pin is the gyroscope I2C address select (A0_GYRO); tie to GND for default address.
11	VDDIO	power_in	Digital I/O supply voltage. Operating range 1.2 V to 3.6 V. Decouple with 100 nF to GND.
12	INT3	bidirectional	Gyroscope interrupt pin #1 (INT3_GYRO). Digital I/O. If unused, leave unconnected (DNC).
13	INT4	bidirectional	Gyroscope interrupt pin #2 (INT4_GYRO). Digital I/O. If unused, leave unconnected (DNC).
14	CSB1	input	SPI chip select for the accelerometer (active low). In I2C mode tie to VDDIO or leave DNC (float); the accelerometer defaults to I2C when CSB1 is high at power-up.
15	SDO1	output	SPI serial data output for the accelerometer (MISO). In I2C mode this pin is the accelerometer I2C address select (A0_ACCEL); tie to GND for default address.
16	INT1	bidirectional	Accelerometer interrupt pin #1 (INT1_ACCEL). Digital I/O. If unused, leave unconnected (DNC).

Key specifications

Parameter	Value
Manufacturer	Bosch Sensortec
Package	LGA-16(3x4.5)
Category	Sensor
Pins	16

CAD (KiCad official)

Symbol: BMI088
Footprint: Package_LGA:Bosch_LGA-16_4.5x3mm_P0.5mm_LayoutBorder7x1y_ClockwisePinNumbering
3D model: LGA-16(3x4.5) (KiCad packages3D, STEP)

Provenance

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

Datasheet: Bosch Sensortec datasheet (62 pp, sha256 53ab734dba49ac20, retrieved 2026-08-17, tier: lcsc)
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