MPU9250 Digital Motion Processor: Datasheet, Pinout, MPU9250 vs. MPU6050

MPU9250 Pinout

Pin Description

MPU9250 Symbol

MPU9250 Footprint

MPU9250  3D Model

The InvenSense MPU9250 9-axis Digital Motion Processor is a combined processor of the 3-axis gyroscope, 3-axis accelerometer, and the 3-axis Magnetometer. The DMP has three 16-bit resolution analogue-to-digital Converters for the digitization of the outputs from the accelerometer, magnetometer, and gyroscope. The device also has a separate power supply for digital I/O, an integrated temperature sensor, and programmable interrupts.

TDK InvenSense MPU-9250 technical specifications, attributes, parameters and parts with similar specifications to TDK InvenSense MPU-9250.

1. Gyroscope Features

The triple-axis MEMS gyroscope in the MPU-9250 includes a wide range of features:

 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

 Digitally-programmable low-pass filter

 Gyroscope operating current: 3.2mA

 Sleep mode current: 8µA

 Factory calibrated sensitivity scale factor

 Self-test

2. Accelerometer Features

The triple-axis MEMS accelerometer in MPU-9250 includes a wide range of features:

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

 Accelerometer normal operating current: 450µA

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

 Sleep mode current: 8µA

 User-programmable interrupts

 Wake-on-motion interrupt for low power operation of applications processor

 Self-test

3. Magnetometer Features

The triple-axis MEMS magnetometer in MPU-9250 includes a wide range of features:

 3-axis silicon monolithic Hall-effect magnetic sensor with magnetic concentrator

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

 Output data resolution of 14 bit (0.6µT/LSB)

 Full-scale measurement range is ±4800µT

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

 Self-test function with an internal magnetic source to confirm magnetic sensor operation on end products

4. Additional Features

The MPU-9250 includes the following additional features:

 Auxiliary master I2C bus for reading data from external sensors (e.g. pressure sensor)

 3.5mA operating current when all 9 motion sensing axes and the DMP are enabled

 VDD supply voltage range of 2.4 – 3.6V

 VDDIO reference voltage for auxiliary I2C devices

 Smallest and thinnest QFN package for portable devices: 3x3x1mm

 Minimal cross-axis sensitivity between the accelerometer, gyroscope and magnetometer axes

 512 byte FIFO buffer enables the applications processor to read the data in bursts

 Digital-output temperature sensor

 User-programmable digital filters for gyroscope, accelerometer, and temp sensor

 10,000 g shock tolerant

 400kHz Fast Mode I2C for communicating with all registers

 1MHz SPI serial interface for communicating with all registers

• Location-based services, points of interest, and dead reckoning

• Handset and portable gaming

• Motion-based game controllers

• 3D remote controls for Internet-connected DTVs and set-top boxes, 3D mice

• Wearable sensors for health, fitness, and sports

MPU9250 Block Diagram

MPU9250 Typical Operating Circuit

The Interfacing Diagram for MPU9250 is given below.

MPU9250 Interfacing Diagram

How to Interface MPU9250 DMP with Microcontroller?

1. In order to communicate with the module, the microcontroller must support at least one of the serial protocols SPI or I2C.

2. The power supply pins are used to power the module.

3. Connect the microcontroller's analogue pins to the Serial data line (SDA) and Serial clock line (SCA). The data will be transmitted using the I2C protocol.

4. For communication, the module also contains a Serial Peripheral Interface.

5. If the microcontroller in question does not use any, make sure to include pull up resistors to prevent I2C signal loss.

InvenSense, Inc is a Group Company that provides TDK products. As a part of the Sensor System Business Company and the industry leader around the world, InvenSense is dedicated to MEMS Motion, Audio, and Pressure Solutions, industrial, automotive, and IoT market segments. Due to the stronger portfolio of MEMS 3/6/7/9 axis motion sensors and their high-performance MEMS audio microphones, and pressure sensors，they are far ahead of the rest of the world. TDK keeps pushing the boundaries of performance and quality. In the meantime, they keep setting new standards of innovation for multiple industries.