LSM6DSV320X 6-Axis Inertial Measurement Unit

The STMicroelectronics LSM6DSV320X is a high-end, low-noise, low-power, small IMU featuring a 3-axis digital low-g accelerometer up to 16 g, a 3-axis digital high-g accelerometer up to 320 g, and a 3-axis digital gyroscope, which offers the best IMU sensor with a quad-channel architecture for processing acceleration and angular rate data on four separate channels (user interface, OIS, EIS, and high-g accelerometer data) with dedicated configuration, processing, and filtering along with a dedicated high-g sensor for high-g shock and car crash detection.

The device enables edge computing, leveraging embedded advanced dedicated features such as a finite state machine (FSM) for configurable motion tracking and a machine learning core (MLC) for context awareness with exportable AI features for IoT applications.

The LSM6DSV320X supports the adaptive self-configuration (ASC) feature, which allows automatically reconfiguring the device in real-time based on the detection of a specific motion pattern or based on the output of a specific decision tree configured in the FSM or based on the MLC output, without any intervention from the host processor. The device embeds a dedicated accelerometer sensor with an independent channel and filtering for high-g acceleration detection that perfectly matches shock requirements for concussion detection, shock detection, sports, and a full range of car crash detection applications.

Features

• Quad-channel architecture for UI, EIS, OIS, and high-g data processing
• Smart, always-aware experience for system power optimization
• Smart FIFO up to 4.5 KB
• Dual accelerometer channels
  • Low-g channel ±2 g/±4 g/±8 g/±16 g full scale
  • High-g channel ±32 g/±64 g/±128 g/±256 g/±320 g full scale
• ±250 dps/±500 dps/±1000 dps/±2000 dps/±4000 dps full scale
• SPI/I²C and MIPI I3C® v1.1 serial interface with main processor data synchronization
• Auxiliary SPI and MIPI I3C® v1.1 for OIS data output for gyroscope and accelerometer
• OIS configurable from the auxiliary or primary interface
• EIS dedicated channel on primary interface with dedicated filtering
• Advanced pedometer, step detector, and step counter
• Significant motion detection, tilt detection
• Standard interrupts: free-fall, wake-up, 6D/4D orientation, click and double click, high-g wake-up, and high-g shock
• Programmable finite state machine for accelerometer (high-g and low-g), gyroscope, and external sensor data processing with high rate at 960 Hz
• Machine learning core with exportable features and filters for AI applications
• Embedded adaptive self-configuration (ASC)
• Embedded sensor fusion low-power (SFLP) algorithm
• Embedded temperature sensor
• Independent I/O supply
  • I²C voltage range: 1.62 V to 3.6 V
  • SPI / MIPI I3C extended voltage range: 1.08 V to 3.6 V
• Supply current in combo high-performance mode
  • 6-axis configuration at 0.67 mA
  • 9-axis configuration at 0.80 mA
• Compact footprint: 2.5 mm x 3 mm x 0.83 mm
• ECOPACK and RoHS compliant