Motion

Bosch Sensortec BMA400 is a 12-bit triaxial accelerometer optimized for ultra-low-power applications such as wearables, hearables, and IoT motion-triggered devices. It combines an always-on auto-wakeup mode (~800 nA @ 25 Hz ODR), built-in step counter and activity recognition (walking/running/standing), orientation and tap/double-tap detection, and a 1 kB FIFO. Hosts can talk to it over I2C (Standard/Fast/HS up to 3.4 MHz) or SPI (3-wire or 4-wire, up to 10 MHz). Two configurable interrupt outputs (INT1, INT2) drive motion-triggered processors. This part is the bare 12-pin LGA chip (2.0 x 2.0 x 0.95 mm) — not a breakout — for use on custom PCBs.

Bosch Sensortec BMI270 is a 6-axis smart low-power inertial measurement unit with 16-bit triaxial accelerometer, 16-bit triaxial gyroscope, primary I2C/SPI host interface, optional secondary AUX/OIS interface, FIFO, and wearable motion and activity features.

6-axis IMU with 3D accelerometer + 3D gyroscope, I2C/SPI digital interface, embedded FIFO, and always-on low-power features.

TDK InvenSense ICM-42688-P is a high-precision 6-axis MEMS MotionTracking IMU combining a 3-axis gyroscope and 3-axis accelerometer with selectable gyro full-scale ranges from +/-15.625 dps to +/-2000 dps and accelerometer ranges from +/-2 g to +/-16 g. It supports host interfaces of I3C (up to 12.5 MHz), I2C (up to 1 MHz), and SPI (up to 24 MHz), a 2 KB FIFO, programmable INT1 and INT2 (with FSYNC / CLKIN multiplexed on INT2), and APEX motion functions including pedometer, tap, tilt, wake-on-motion, and significant motion detection.