MPU9255 Multi-Chip Module: Datasheet, Pinout and Applications

MPU9255 is a multi-chip module (MCM) consisting of two dies integrated into a single QFN package. One die houses the 3-Axis gyroscope and the 3-Axis accelerometer. With its dedicated I2C sensor bus, the MPU-9255 directly provides complete 9-axis MotionFusion™ output.

Footprint

3D Model

• Gyroscope Features

1. Digital-output X-, Y-, and Z-Axis angular rate sensors (gyroscopes) with a user-programmable fullscale range of ±250, ±500, ±1000, and ±2000°/sec and integrated 16-bit ADCs

2. Digitally programmable low-pass filter

3. Gyroscope operating current: 3.2mA

4. Sleep mode current: 8µA

5. Factory calibrated sensitivity scale factor

6. Self-test

• Accelerometer Features

1. Digital-output triple-axis accelerometer with a programmable full-scale range of ±2g, ±4g, ±8g, and ±16g and integrated 16-bit ADCs

2. Accelerometer normal operating current: 450µA

3. Low power accelerometer mode current: 8.4µA at 0.98Hz, 19.8µA at 31.25Hz

4. Sleep mode current: 8µA

5. User-programmable interrupts

6. Wake-on-motion interrupts for low power operation of applications processor

7. Self-test

• Magnetometer Features

1. 3-axis silicon monolithic Hall-effect magnetic sensor with magnetic concentrator

2. Wide dynamic measurement range and high resolution with lower current consumption.

3. Output data resolution of 14 bit (0.6µT/LSB) or 16 bit (15µT/LSB)

4. Full-scale measurement range is ±4800µT

5. Magnetometer normal operating current: 280µA at 8Hz repetition rate

6. Self-test function with an internal magnetic source to confirm magnetic sensor operation on the end

7. Products

MPU9255 is a wearable sensor for health, fitness, and sports.

The INT pin should be connected to a GPIO pin on the system processor that is capable of waking the system processor from suspend mode.

The only difference was that the WHO_AM_I register returns 0x73. Existing libraries for the MPU9250 seem to work the same on the MPU9255. Example code may need to be updated to expect a different WHO_AM_I response.

InvenSense, Inc, a TDK Group Company: InvenSense is part of the Sensor System Business Company within TDK and is the industry leader in MEMS Motion, Audio, and Pressure Solutions for the consumer, industrial, automotive, and IoT market segments. With a very robust portfolio of MEMS 3/6/7/9 axis motion sensors, accompanied by the highest performing MEMS audio microphones, and pressure sensors - TDK continues to push the boundaries of performance and quality; setting new standards of innovation across multiple industries.