STMicroelectronics ISM6HGK256X Intelligent IMU
STMicroelectronics ISM6HGK256X Intelligent Inertial Measurement Unit (IMU) is a high-end, low-noise, low-power 6-axis IMU, featuring a 3-axis digital low-g accelerometer at 16g, a 3-axis digital high-g accelerometer at 256g, and a 3-axis digital gyroscope. This offers an ideal IMU sensor with a quad-channel architecture for processing acceleration and angular rate data across four separate channels (user interface, OIS, EIS, and high-g accelerometer). It also comes with dedicated configuration, processing, and filtering, along with a dedicated high-g sensor for high-g shock.
The ISM6HGK256X employs a distinct gyroscope design featuring a fully differential readout chain and enhanced mechanical symmetry, delivering outstanding vibration immunity and resilience to external perturbations. The device enables edge computing by leveraging advanced embedded 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 device supports the adaptive self-configuration (ASC) feature, which automatically reconfigures the device in real time based on the detection of a specific motion pattern or on the output of a specific decision tree configured in the MLC, without any intervention from the host processor.
The STMicroelectronics ISM6HGK256X integrates a dedicated accelerometer with an independent channel and filtering for high-g acceleration detection, perfectly matching shock requirements for asset tracking, robotics and factory automation, condition monitoring, and worker PPE (personal protective equipment).
Features
- Dual 3-axis accelerometer channels
- Low-g channel ±2/±4/±8/±16g full scale
- High-g channel ±32/±64/±128/±256g full scale
- 3-axis gyroscope
- With an extended selectable full scale
- ±250/±500/±1000/±2000/±4000dps full scale
- Dedicated gyroscope architecture with enhanced vibration immunity
- Programmable finite state machine for accelerometer (low-g and high-g), gyroscope, and external sensor data processing with a high rate at 960Hz
- Machine learning core with exportable features and filters for AI applications
- Embedded adaptive self-configuration (ASC)
- Embedded sensor fusion low-power (SFLP) algorithm
- Smart FIFO up to 4.5KB
- "Smart, always-aware" experience for system power optimization
- Supply current
- 6-axis configuration at 0.67mA in combo high-performance mode
- 6-axis configuration with dual accelerometer full scale at 0.80mA in combo high-performance mode
- 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
- Smart digital features
- Advanced pedometer
- Step detector
- Step counter
- Significant motion detection
- Tilt detection
- Standard interrupts
- High-g wake-up and high-g shock
- Free-fall
- Wake-up
- 6D/4D orientation
- Click, and double click
- Embedded temperature sensor
- 1.71V to 3.6V analog supply voltage
- Independent I/O supply (extended range of 1.08V to 3.6V)
- Compact footprint of 2.5mm x 3mm x 0.83mm
- ECOPACK and RoHS-compliant
Applications
- Condition monitoring
- Asset tracking
- Robotics
- Drones and UAVs (unmanned aerial vehicles)
- Factory automation
- Safety helmets/hard hats
- Black boxes
Pin Description
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STMicroelectronics ISM6HG256X Intelligent Inertial Measurement Unit
A high-end, low-noise, low-power 6-axis IMU with two accelerometers and one gyroscope.
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