
BMI270 Series 3.6 V 685 µA Smart Ultra-low Power Inertial Measurement Unit
BMI270 is an ultra-ow power IMU optimized for wearable applications. This article will unlock its pinout, application, datasheet, comparison and more details about BMI270.

BMI270 Series 3.6 V 685 µA Smart Ultra-low Power Inertial Measurement Unit
BMI270 is an ultra-ow power IMU optimized for wearable applications. This article will unlock its pinout, application, datasheet, comparison and more details about BMI270.

BMI270 Pinout
| Pin NO. | Description |
| 1 | SDO, Serial data output in SPI 4W |
| 2 | ASDx, Aux interface / OIS interface |
| 3 | ASCx, Aux interface / OIS interface |
| 4 | INT1, Interrupt Pin 1 |
| 5 | VDDIo, Digital Vo supply voltage (1.2 .. 3.6V) |
| 6 | GNDio, Ground for V0 |
| 7 | GND, Ground for digital and analogue |
| 8 | VDD, Power supply analog and digital (1.71 .. 3.6V) |
| 9 | INT2, Interrupt Pin 2 |
| 10 | OCSB, Ols interface |
| 11 | OSDO, OIS interface |
| 12 | CSB, Chip select for SPI mode |
| 13 | SCx, SP/4C serial clock (SCK/SCL) |
| 14 | SDx, Serial data Vo |
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)

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).
Bosch Sensortec BMI270 technical specifications, attributes, parameters and parts with similar specifications to Bosch Sensortec BMI270.
| Attribute | Value |
|---|---|
| Factory Lead Time | 14 Weeks |
| Mounting Type | Surface Mount |
| Package / Case | 14-VFLGA |
| Operating Temperature | -40°C~85°C |
| Packaging | Tape & Reel (TR) |

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).
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