Part: ICM-42688-P — TDK-Invensense

Type: 6-axis MEMS MotionTracking Device

Description: A 6-axis MEMS MotionTracking device combining a 3-axis gyroscope and a 3-axis accelerometer, featuring configurable I3C, I2C, and SPI host interfaces, a 2 kB FIFO, and ultralow-power wake-on-motion support.

Operating Conditions:

• Supply voltage: VDD 1.71V to 3.6V, VDDIO 1.71V to 3.6V
• Operating temperature: -40°C to +85°C
• Gyroscope Full-scale range: ±15.6/31.2/62.5/125/250/500/1000/2000 dps
• Accelerometer Full-scale range: ±2/4/8/16 g

Key Specs:

• Gyroscope Noise: 2.8 mdps/√Hz
• Accelerometer Noise: AXY: 65 μg/√Hz; AZ: 70 μg/√Hz
• Low-Noise mode 6-axis current consumption: 0.88 mA
• Gyroscope Offset Temperature Stability: ±5 mdps/°C
• Gyroscope Resolution: 16/19-bits
• Accelerometer Resolution: 16/18-bits
• Host interface speeds: I3C 12.5 MHz, I2C 1 MHz, SPI 24 MHz
• FIFO size: 2 kB

Features:

• Gyroscope Noise: 2.8 mdps/√Hz & Accelerometer Noise: 70 μg/√Hz
• 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: Pedometer, Tilt Detection, Tap Detection, Wake on Motion, Raise to Wake/Sleep, Significant Motion Detection
• Host interface: 12.5 MHz I3C SM , 1 MHz I2C, 24 MHz SPI
• 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 gyroscope, 18-bits accelerometer)
• Embedded temperature sensor

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: 2.5×3×0.91 mm 14-Pin LGA

Notes

• Power Pins: VDD (pin 12) is the analog supply; VDDIO (pins 3, 6, 14) is the digital I/O supply. Both must be decoupled independently.
• Ground Pins: GND appears on pins 2, 11, and 13 for low-impedance return paths.
• Serial Interface: Pins 7–10 support I3C SM, I²C, and SPI modes. Pin 10 (CS) is used only in SPI mode.
• Interrupts: INT1 (pin 4) and INT2 (pin 5) are programmable and support wake-on-motion functionality.
• Clock Input: CLKIN (pin 1) accepts an external clock to improve ODR accuracy and reduce temperature sensitivity.

Typical Operating Circuit of section 4.2, VDD = 1.8 V, VDDIO = 1.8 V, TA=25°C, unless otherwise noted.

Table 3. D.C. Electrical Characteristics

1. Guaranteed by design.
2. Derived from validation or characterization of parts, not tested in production.

Stress above those listed as 'Absolute Maximum Ratings' may cause permanent damage to the device. These are stress ratings on ly and functional operation of the device at these conditions is not implied. Exposure to the absolute maximum ratings conditions for extended periods may affect device reliability.

Table 9. Absolute Maximum Ratings

Table 9. Absolute Maximum Ratings

14 Lead LGA (2.5x3x0.91) mm NiAu pad finish