The MPU-6555 is a 3-axis gyroscope and 3-axis accelerometer designed specifically for Automatic Activity Recognition library (AAR™) in a 3 x 3 mm package.

The new MPU-6555 is InvenSense’s first generation 6-axis activity detection device, working in conjunction with the AAR™ activity detection library. The InvenSense low power sensor can detect running, walking, biking, no-motion, and sleep analysis on a wrist-worn wearable device. This solution is ideal for Smart Watch, Smart Band, and fitness tracker applications that want to enable the next-generation features for wearable products. The library uses data calculated on the sensor DMP (Digital Motion Processor) to recognize new activities, typically within 10 seconds and with 95% accuracy for true positives. A pedometer comes with the AAR™ library that benefits from the contextual awareness of knowing which activities will require steps and which will not. The AAR™ library is optimized to recognize the users “persistent” activity useful in applications where you are trying to catalog the user’s daily fitness level.

The AAR library is required to leverage the full capabilities of this chip; it can be downloaded in our Developers Corner after signing a click-through SLA along with API Document and Integration Guide.

Product Details

Part # Gyro Full Scale Range Gyro Sensitivity Gyro Rate Noise Accel Full Scale Range Accel Sensitivity Digital Output Logic Supply Voltage Operating Voltage Supply Package Size
UNITS: (°/sec) (LSB/°/sec) dps/√Hz (g) LSB/g (V) (V +/-5%) (mm)
MPU-6555
MPU-6555
±250
±500
±1000
±2000
131
65.5
32.8
16.4
0.01
0.01
0.01
0.01
±2
±4
±8
±16
16384
8192
4096
2048
I²C or SPI VDD 1.71V–3.5V 3x3x0.9

Features

  • Digital-Output of 6-Axis MotionFusion Data; 9-Axis Fused Data from Motion Processing Library
  • Tri-axis angular rate sensor (gyro) with a sensitivity up to 131 LSBs/dps and a full-scale range of ±250, ±500, ±1000, and ±2000 dps
  • Tri-axis accelerometer with a programmable full scale range of ±2g, ±4g, ±8g and ±16g
  • Reduced settling effects and sensor drift by elimination of board-level cross-axis alignment errors between accelerometers and gyroscopes
  • Digital Motion Processing™ (DMP™) engine offloads complex MotionFusion sensor timing synchronization and gesture detection
  • Automatic Activity Recognition Library™ support for Atmel M4 (ATSAM4LS4A)
  • Embedded Algorithms for Run-Time Bias and Compass Calibration
  • Digital-Output Temperature Sensor
  • Digital Input on FSYNC Pin to Support Video Electronic Image Stabilization
  • Programmable interrupt supports gesture recognition, panning, zooming, scrolling, tap detection, and shake detection
  • VDD Supply Voltage Range of 1.71 V–3.6 V
  • Gyro Operating Current: 3.2 mA (Full Power, Gyro at All Rates)
  • Gyro + Accelerometer Operating Current: 3.4 mA (Full Power, Gyro at All Rates, Accelerometer at 1k Hz Sample Rate)
  • Accelerometer Low-Power Mode Operating Currents: 18.65 µA at 31.25 Hz
  • Full-Chip Idle Mode Supply Current: 6 µA
  • 400 kHz Fast-Mode I²C or up to 20 MHz SPI serial host interfaces
  • 10,000 g shock tolerant
  • Smallest and Thinnest Package for Portable Devices (3 mm x 3 mm x 0.9 mm QFN)
  • RoHS and Green Compliant
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