Part: ICM-42688-P from TDK-InvenSense

Type: 6-Axis MEMS MotionTracking Device

Description: The ICM-42688-P is a 6-axis MEMS MotionTracking device combining a 3-axis gyroscope and a 3-axis accelerometer, featuring 2.8 mdps/√Hz gyroscope noise, 70 μg/√Hz accelerometer noise, 0.88 mA low-noise mode current consumption, and configurable I3C, I2C, and SPI host interfaces.

Operating Conditions:

• Supply voltage: 1.71V to 3.6V (VDD and VDDIO)
• Operating temperature: -40°C to +85°C
• Host interface speeds: 12.5 MHz I3C, 1 MHz I2C, 24 MHz SPI

Absolute Maximum Ratings:

Key Specs:

• Gyroscope Noise: 2.8 mdps/√Hz
• Accelerometer Noise: 70 μg/√Hz (AXY: 65 μg/√Hz; AZ: 70 μg/√Hz)
• Low-Noise mode 6-axis current consumption: 0.88 mA
• User selectable Gyro Full-scale range: ± 15.6/31.2/62.5/125/250/500/1000/2000 dps
• User selectable Accelerometer Full-scale range: ± 2/4/8/16 g
• Gyro Offset Temp Stability: ±5 mdps/°C
• ODR & Sample Synch: 32kHz; RTC
• FIFO size: 2 kB

Features:

• 2 kB FIFO
• 2 programmable interrupts with ultralow-power wake-on-motion support
• Highly accurate external clock input support
• Industry first 20-bits data format support in FIFO (19-bits gyro, 18-bits accel)
• InvenSense on-chip APEX Motion Processing engine for gesture recognition, activity classification, and pedometer
• Programmable digital filters for gyro, accel, and temp sensor
• Embedded temperature sensor
• Pedometer, Tilt Detection, Tap Detection
• Wake on Motion, Raise to Wake/Sleep, Significant Motion Detection

Applications:

• AR/VR Controllers
• Head Mounted Displays
• Wearables
• Sports
• Robotics
• IoT Applications

Package:

• 2.5x3mm 14-Pin LGA

• Gyroscope Noise: 2.8 mdps/ Hz & Accelerometer Noise: 70 μg/ Hz
• o Low-Noise mode 6-axis current consumption of 0.88 mA
• User selectable Gyro Full-scale range (dps): ± 15.6/31.2/62.5/125/250/500/1000/2000
• User selectable Accelerometer Full-scale range (g): ± 2/4/8/16
• User-programmable digital filters for gyro, accel, and temp sensor
• APEX Motion Functions:
• o Pedometer, Tilt Detection, Tap Detection
• o Wake on Motion, Raise to Wake/Sleep, Significant Motion Detection
• Host interface: 12.5 MHz I3C SM , 1 MHz I 2 C, 24 MHz SPI

• AR/VR Controllers
• Head Mounted Displays
• Wearables
• Sports
• Robotics
• IoT Applications

ICM-42688-P Pinout

Package: 2.5×3 mm 14-Pin LGA

Notes

• Power Pins: VDD (pins 13, 14) and VDDIO (pins 4, 5) must be decoupled with appropriate capacitors per the typical operating circuit.
• Ground Pins: GND connections on pins 2, 3, and 12 must be properly connected to system ground.
• Serial Interface: The device supports I³C SM, I²C, and SPI communication modes. Pin configuration (SDA/SDI, SCL/SCK, CS, SDO/SAO) depends on the selected interface mode.
• Interrupts: INT1 and INT2 (pins 11, 10) are programmable and can be configured for various motion detection events (wake-on-motion, tap detection, etc.).
• Clock Input: CLKIN (pin 1) accepts an external clock for improved accuracy and reduced ODR sensitivity.