ICM-42688-P

Overview

The ICM-42688-P is a 6-axis MEMS MotionTracking device integrating a 3-axis gyroscope and 3-axis accelerometer. It supports configurable host interfaces including I3CSM, I²C, and SPI. The device features a 2 KB FIFO with industry-first 20-bit data format support for high resolution. Gyroscope noise is 2.8 mdps/√Hz and accelerometer noise is 70 µg/√Hz in low-noise mode. Current consumption is 0.88 mA in low-noise 6-axis mode. Standby current is 7.5 µA. Operating voltage ranges from 1.71 V to 3.6 V. Temperature range is -40°C to +85°C.

Feature Summary

• Integrates an on-chip APEX motion processing engine for gesture recognition, activity classification, and pedometer functions.
• Supports ultra-low-power wake-on-motion functionality to minimize system power consumption.
• Features programmable digital filters for the gyroscope, accelerometer, and embedded temperature sensor.
• Includes highly accurate external clock input capability to reduce sensitivity errors and improve orientation measurement.

Applications

• AR/VR controllers
• Head-mounted displays
• Wearable devices
• Robotics systems
• IoT applications

Procurement Notes

Verify the specific package type and interface configuration required for your design, as the component supports multiple serial communication protocols. Confirm that the operating voltage range of 1.71 V to 3.6 V aligns with your system's power supply rails. Ensure compatibility with the LGA-14 package dimensions during PCB layout. Check for any recent product change notifications regarding manufacturing updates or material substitutions before finalizing procurement plans.

Selection Notes

Select this component when high precision and low power consumption are critical requirements. The integrated APEX engine reduces host processor load by handling motion tasks locally. Consider the 20-bit FIFO data format if maximum data resolution is necessary for complex motion tracking algorithms. Verify that the available full-scale ranges for both gyro and accelerometer meet the dynamic requirements of the target application environment.

Part Context

The ICM-42688-P belongs to the TDK InvenSense SmartMotion family of inertial sensors. These devices combine high-performance MEMS technology with advanced MotionFusion algorithms. The series targets applications requiring precise real-time motion data with minimal system complexity. This specific model represents a high-precision solution within the broader portfolio of motion tracking devices offered by the manufacturer.

Replacement Considerations

Consult official documentation for confirmed substitute part numbers. No verified substitutes are listed in the provided source material.