The ICM-42670-L belongs to the TDK InvenSENSE 426xx series 6-axis MEMS IMU (3-axis gyro + 3-axis accelerometer).

Model: ICM-42670-L

Manufacturer: TDK InvenSense

Package: LGA-14, size 2.5 × 3.0 × 0.76 mm, bottom pad, no side pins

Screen printing: top surface screen printing code I4670, will not print the complete model, one corner dot marking 1 pin

Packaging suffix explaination: ‑L = pallet wrapped and shipped;‑P for roll-belt packaging;The electrical parameters are exactly the same, only the packaging form is different.

Power supply: VDD/VDDIO: 1.71V-3.6V, supports 1.8V, 3.3V mainstream systems

Temperature range: ‑40 ℃ ~ +85 ℃ (consumer industrial temperature, non-automotive grade device)

Impact resistance: 20000 g

WHO_AM_I_ID: 0x67, software identification chip ID key register

3. Core performance parameters (can be made into a table and copied directly)

form

Parameter item Typical indicator

Gyro noise 7 mdp/√Hz

Gyro range ±250/±500/±1000/±2000dps programmable

Gyro zero temperature drift ± 0.015dps/℃

Accelerometer noise 100 μg/∘Hz

Acceleration range ±2g / 4g / 8g / 16g programmable

Accelerometer zero temperature drift ± 0.15 mg/°C

6-axis full open low noise mode current 0.55 mA

Sleep current 3.5 μA

FIFO cache 2.25KB, reduce MCU read frequency

Interrupt 2 programmable interrupt output

Communication interface I3C-SM, I2C, SPI three interfaces compatible

Built-in engine APEX Hardware implementation of step counting, tilt detection, free fall, motion wake-up WoM, significant motion detection SMD

Application field materials (written in sections)

1, Wearable & Audio Devices (core landing scenarios)

TWS Bluetooth earbuds, wearable devices: in-ear detection, head posture tracking, gesture recognition, wearing posture judgment.

Smartwatches and wristbands: step counting, sleep monitoring, fall detection, motion recognition, posture-based screen wake-up.

2. XR and gaming peripherals

AR/VR/MR headsets, VR controllers: head posture tracking, 6DoF motion sensing, reducing screen shake.

Game controller, body-sensing remote control, body-sensing swing detection.

3. Smart phones, tablets

Screen rotation, free fall protection, motion wake-up, anti-shake assistance, I3C interface realizes high-speed data acquisition.

4. IoT (Internet of Things) terminals

Battery-powered IoT devices, WoM motion wake-up, standby sleep, motion wake-up MCU; Asset vibration, tilt monitoring, smart home.

5. Small robots and model aircraft

Educational car, micro multi-rotor drone, attitude angle detection; Small sports camera shake detection, auxiliary anti-shake logic.

⚠️Important boundary (to improve the professionalism of the article, it must be written)

Non-automotive grade components cannot be used in automotive safety or self-driving scenarios.

With only 6 axes and no magnetometer, it cannot directly output the heading angle, and navigation requires an external magnetic sensor for attitude fusion.

The positioning is a consumer-grade MEMS IMU, which is not suitable for high-precision industrial inertial navigation.

Horizontal selection comparison material

ICM‑42670‑L vs ICM‑42607‑P

ICM-42670-L: Excellent overall performance, more cost-friendly, suitable for large-scale consumer wearables, headphones, and IoT;

ICM-42607-P: Noise and temperature drift indicators are higher, targeting high-end XR and high-precision handle scenarios.

The two registers are compatible, the pad LGA-14 is compatible, and many projects can be directly replaced and debugged.

Compared with the old model ICM‑ 20602

The power consumption, noise, and temperature drift have been comprehensively upgraded, the APEX hardware engine has been added, some projects can be compatible with the iterative upgrade of the solder pad, and the old MPU-6050 scheme can be replaced.

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