BMI270 Motion Sensor: Datasheet, Pinout, BMI270 vs. MPU6000 [FAQ]

BMI270 Pinout

Symbol

BMI270 Symbol

Footprint

BMI270 Footprint

3D Model

BMI270 3D Model

BMI270 is an ultra-low-power IMU optimized for wearable applications. The IMU combines precise acceleration and angular rate measurement with intelligent on-chip motion-triggered interrupt features. The 6-axis sensor combines a 16-bit triaxial gyroscope and a 16-bit triaxial accelerometer in a compact 2.5 x 3.0 x 0.8 mm3 LGA package.

●Compact standard size LGA mould package, 14 pins, footprint 2.5x3.0mm2 height 0.83mm
●Primary digital interface with 10 MHz slave  SPI  (4-wire, 3-wire) and up to 1MHz PC (Fm+)
●Output data rates (ODR): 25 Hz. 6.4 kHz (gyroscope) and 0.78 Hz .. 1.6 kHz (accelerometer)
●Programmable low-pass filter (accelerometer I gyroscope): bandwidth ca. 513... 680 I 890 Hz.
●Wide power supply range: Analog VDD 1.71V .. 3.6V and independent VDDIO 1 2...3.6V
●Ultra-low current consumption: Typ. 685 μA (in full ODR and aliasing-free operation)
●Performance mode for a gyroscope to minimize noise level: typ. < 8 mdps /vHz.
●The built-in power management unit (PMU) for advanced power management and low power modes

●Rapid startup time: 2 ms for gyroscope (in fast start mode) and 2 ms for accelerometer

● Freely configurable secondary digital interface
  ●400 kHz PC (Fm) master interface hub for 1 I2C AUX sensor (e.g. ext. magnetometer, pressure)
    ●data synchronized to  IMU 
●10 MHz slave  SPI (4-wire, 3-wire) for high speed, calibration-free OIS / Dual OIS (SPI) applications
    ●up to 6.4 kHz ODR, control register access and max 676 us group delay
●2 KB on-chip FIFO buffer for accelerometer, gyroscope, timestamps, and AUX sensor data

●Fast offset error compensation for accelerometer and gyroscope
●Fast sensitivity error compensation for gyroscope (CRT, max sensitivity error < 1%)
●HW synchronization of accelerometer, gyroscope, and AUX sensor (< 1 μs)
●Sensor time stamps for accurate system (host) and sensor (IMU) time synchronization (<40 μus)
●2 independent programmable Vo pins for interrupt and synchronization events
●RoHS compliant, halogen and lead-free

●Wearables

●Hearables

●Smart clothing

●Augmented / virtual reality (AR/VR)

●Fitness trackers, wristbands, smartwatches

●Earbuds, ankle bands, neck bands

●Smart clothes

●Augmented and virtual reality glasses and controllers

BMI270 Block Diagram

BMI270 is designed to best fit into modern embedded CE wearable/hearable devices and provides a primary digital interface (I2C and SPI) and a freely configurable secondary digital interface (I2C and SPI).

BMI270 is available in two application-specific versions: gesture and context & activity. The 'gesture' version includes flick in/out, arm up/down, and wrist tilt features. This version is designed for Wear OS by GoogleTM1 thus ensuring a user-friendly and feature-rich experience for end-users. The 'context and activity' version has advanced features for recognizing context activity and activity change, for example standing, walking and being in a vehicle (e.g. parking).

BMI270 Package

Bosch Sensortec GmbH is a fully owned subsidiary of  Robert Bosch GmbH dedicated to the world of consumer electronics; offering a complete portfolio of micro-electro-mechanical systems (MEMS) based sensors and solutions that enable mobile devices to feel and sense the world around them. Bosch Sensortec develops and markets a broad portfolio of MEMS sensors, solutions and systems for applications in smartphones, tablets, wearable devices, and various products within the IoT (Internet of Things).