TDK

ICM-42688-P - 6-Axis MEMS IMU with 2KB FIFO | TDK InvenSense

Name: ICM-42688-P
Brand: TDK InvenSense
Price: 6.50 USD
Availability: InStock

MPN: ICM-42688-P ✓ Active

In Stock (99,999) Ships in 1-3 business days

1.71 V to 3.6 V Vdss 0.9 mA Id 14-pin LGA, 2.5 x 3.0 x 0.91 mm Package ±2 g to ±16 g Memory

$6.5 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
1	$6.5	$6.50
10	$5.85	$58.50
100	$5.2	$520.00
500	$4.68	$2,340.00
1,000	$4.16	$4,160.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for ICM-42688-P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

ICM-42688-V

✅ Drop-In

📦 14-pin LGA

Same package and pinout, but may have different electrical specs

📋 Reference alternative (not in catalog)

ICM-42688-PC

✅ Drop-In

📦 14-pin LGA

Pin-compatible but not software-compatible, lacks external 32 kHz input

📋 Reference alternative (not in catalog)

BMI270

⚡ Same Package

📦 14-pin LGA

Same package but not pin-compatible, requires PCB redesign

📋 Reference alternative (not in catalog)

LSM6DS3TR-C

⚡ Same Package

STMicroelectronics

📦 14-pin LGA

±2/±4/±8/±16 g · ±125/±245/±500/±1000/±2000 dps · 1.6 Hz to 6.66 kHz (accel), 12.5 Hz to 6.66 kHz (gyro) · 16-bit · 1.71 V to 3.6 V · 0.9 mA · 0.45 mA · 8 KB

✓ 99,999 In Stock

$1.6 / Unit

View Datasheet →

ISM330DHCX

⚡ Same Package

📦 14-pin LGA

Same package but not pin-compatible, requires PCB redesign

📋 Reference alternative (not in catalog)

ℹ️ 1 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

ICM-42688-P Maximum Ratings & Electrical Characteristics

Sensor Type	Accelerometer, Gyroscope, 6 Axis
Package	14-pin LGA, 2.5 x 3.0 x 0.91 mm
Interface	I2C, SPI, I3C
Gyroscope Full Scale Range	±15.5 dps to ±2000 dps
Accelerometer Full Scale Range	±2 g to ±16 g
Gyroscope Noise Density	2.8 mdps/√Hz
Accelerometer Noise Density	70 µg/√Hz
Output Data Rate (Gyro)	Up to 32 kHz
Output Data Rate (Accel)	Up to 32 kHz
FIFO Size	2 kB
Supply Voltage	1.71 V to 3.6 V
Current Consumption (Low-Noise Mode)	0.9 mA
Current Consumption (Low-Power Mode)	0.45 mA
Operating Temperature	-40°C to +85°C
RoHS	Compliant

ICM-42688-P Pin Configuration

Pin 1	VDD — Power supply (1.71V to 3.6V)
Pin 2	GND — Ground
Pin 3	SCL/SPC — I2C clock or SPI clock
Pin 4	SDA/SDI — I2C data or SPI data in
Pin 5	ADO/SDO — I2C address select or SPI data out
Pin 6	CS — Chip select (active low)
Pin 7	INT1 — Interrupt 1
Pin 8	INT2 — Interrupt 2
Pin 9	RESV — Reserved, connect to GND
Pin 10	VDDIO — I/O supply voltage
Pin 11	GND — Ground
Pin 12	GND — Ground
Pin 13	GND — Ground
Pin 14	GND — Ground

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

ICM-42688-P is suitable for 6 applications: Drone Flight Controllers, Robotics, AR/VR Headsets, Industrial Monitoring, Wearable Health Devices, Navigation Systems.

✈️

Drone Flight Controllers

The ICM-42688-P is ideal for drone flight controllers due to its low noise density (2.8 mdps/√Hz gyro) and high output data rate (up to 32 kHz), which enable precise attitude estimation and stable flight. Its 2 kB FIFO reduces bus traffic, allowing the flight controller to read sensor data efficiently. The device's small 2.5 x 3.0 mm package fits compact drone designs, and its low power consumption (0.9 mA) extends battery life. According to a 2026 UAV model blog, the ICM-42688-P is the preferred gyro for Betaflight 4.5+ builds.

Recommended

STM32F722RET6 · STMicroelectronics STM32F405RGT6 (Alternative flight controller MCU)

🏭

Robotics

In robotics, the ICM-42688-P provides precise motion sensing for orientation and movement control. Its low noise and high ODR enable accurate feedback for balance and navigation algorithms. The device's ultralow-power wake-on-motion feature allows the robot to remain in a low-power state until movement is detected, conserving battery life. The 2 kB FIFO helps manage sensor data efficiently, reducing processor load. The ICM-42688-P's wide supply voltage range (1.71 V to 3.6 V) makes it compatible with various robot power systems.

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STM32F303VET6 · STMicroelectronics STM32L476VGT6 · STMicroelectronics

📱

AR/VR Headsets

The ICM-42688-P is well-suited for AR/VR headsets, where accurate head tracking is critical. Its low noise density and high ODR (up to 32 kHz) enable smooth and responsive motion tracking, reducing motion sickness. The device's small package and low power consumption are ideal for wearable devices. The 2 kB FIFO allows efficient data transfer to the host processor, minimizing latency. According to the TDK datasheet, the ICM-42688-P is designed for high-performance motion tracking in consumer electronics.

Recommended

STM32H747BGT6 · STMicroelectronics STM32L4R9ZIT6 (Low-power MCU for wearable AR/VR)

🏭

Industrial Monitoring

For industrial monitoring, the ICM-42688-P provides reliable vibration and motion sensing for predictive maintenance and equipment health monitoring. Its wide temperature range (-40°C to +85°C) and low noise ensure accurate measurements in harsh environments. The device's programmable interrupts can trigger alerts on threshold crossings, reducing the need for continuous polling. The 2 kB FIFO helps manage data bursts, and the I2C/SPI interfaces allow easy integration with industrial controllers.

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STM32F429IIT6 · STMicroelectronics STM32G474QET6 · STMicroelectronics

💊

Wearable Health Devices

The ICM-42688-P is suitable for wearable health devices, such as fitness trackers and smartwatches, due to its low power consumption (0.45 mA in low-power mode) and small footprint. It can detect motion and orientation for activity tracking and fall detection. The ultralow-power wake-on-motion feature allows the device to remain in a low-power state until movement is detected, extending battery life. The 2 kB FIFO reduces the frequency of host processor wake-ups, further saving power.

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STM32L432KCU6 · STMicroelectronics STM32L071CBT6 · STMicroelectronics

🧭

Navigation Systems

In navigation systems, the ICM-42688-P provides inertial sensing for dead reckoning and sensor fusion with GPS. Its low noise and high ODR enable accurate velocity and position estimation. The device's 2 kB FIFO allows efficient data collection, and its programmable interrupts can synchronize with external sensors. The wide supply voltage range and low power consumption make it suitable for portable navigation devices. According to the TDK datasheet, the ICM-42688-P is designed for high-performance motion tracking.

Recommended

STM32F446ZET6 · STMicroelectronics STM32L496RGT6 (Low-power MCU for portable navigation)

Recommended Products Summary

STM32F722RET6 STMicroelectronics Used in: Drone Flight Controllers STM32F405RGT6 Alternative flight controller MCU Used in: Drone Flight Controllers STM32F303VET6 STMicroelectronics Used in: Robotics STM32L476VGT6 STMicroelectronics Used in: Robotics STM32H747BGT6 STMicroelectronics Used in: AR/VR Headsets STM32L4R9ZIT6 Low-power MCU for wearable AR/VR Used in: AR/VR Headsets STM32F429IIT6 STMicroelectronics Used in: Industrial Monitoring STM32G474QET6 STMicroelectronics Used in: Industrial Monitoring STM32L432KCU6 STMicroelectronics Used in: Wearable Health Devices STM32L071CBT6 STMicroelectronics Used in: Wearable Health Devices STM32F446ZET6 STMicroelectronics Used in: Navigation Systems STM32L496RGT6 Low-power MCU for portable navigation Used in: Navigation Systems

What is the ICM-42688-P?

The ICM-42688-P is a 6-axis MEMS MotionTracking device from TDK InvenSense that combines a 3-axis gyroscope and a 3-axis accelerometer in a 2.5 x 3.0 x 0.91 mm 14-pin LGA package. It supports I2C, SPI, and I3C interfaces, features a 2 kB FIFO, and offers ultralow-power wake-on-motion support. According to the TDK datasheet DS-000347, it provides high precision and low noise for motion sensing applications.

What is the price of ICM-42688-P?

As of 2026-08-19, the ICM-42688-P is priced at approximately $6.50 for single-unit quantities, with volume pricing dropping to around $4.16 at 1000 units. Prices are based on distributor listings from DigiKey and Mouser and may vary with availability and order quantity. For the most current pricing, check distributor websites or contact TDK InvenSense directly.

Where can I buy ICM-42688-P?

The ICM-42688-P is available from major distributors including DigiKey, Mouser, LCSC, and WIN SOURCE. You can purchase it online from these distributors, which offer worldwide shipping. As of 2026-08-19, DigiKey lists it as in stock and ships the same day. For bulk orders, you can also contact TDK InvenSense directly or use their authorized distribution network.

What is the lead time for ICM-42688-P?

The lead time for ICM-42688-P varies by distributor and order quantity. As of 2026-08-19, DigiKey shows it as in stock with immediate shipping. For larger quantities, lead times may extend to several weeks. According to a 2026 article, TDK ICM-42688-P has experienced lead times up to 22 weeks in some cases, so it's advisable to check current availability with your preferred distributor.

Is ICM-42688-P in stock?

As of 2026-08-19, the ICM-42688-P is in stock at major distributors such as DigiKey and Mouser. DigiKey lists it as 'ships today' for orders placed before the cutoff time. However, stock levels can change rapidly, especially given the component's popularity in drone and robotics applications. It is recommended to check the distributor's website for real-time inventory status.

ICM-42688-P vs BMI270 - which is better for drones?

For drone flight controllers, the ICM-42688-P is generally preferred over the BMI270 due to its lower noise density (2.8 mdps/√Hz vs BMI270's 2.9 mdps/√Hz) and higher output data rate (up to 32 kHz vs 6.4 kHz). According to a 2026 UAV model blog, the ICM-42688-P is the clear winner for new drone builds, as Betaflight 4.5+ is designed around its capabilities. However, the BMI270 is a viable alternative if you need a lower-cost option.

What is the difference between ICM-42688-P and ICM-42688-V?

The ICM-42688-P and ICM-42688-V are both 6-axis IMUs from TDK InvenSense, but they differ in package and interface. The ICM-42688-P comes in a 14-pin LGA package and supports I2C, SPI, and I3C, while the ICM-42688-V is in a 14-pin LGA package with similar interfaces but may have different electrical characteristics. According to a comparison on Lisleapex, the P variant is optimized for high performance, while the V variant may have different power or noise specs. Always check the datasheet for exact differences.

When should I choose ICM-42688-P over BMI270?

Choose the ICM-42688-P over the BMI270 when you need lower noise, higher output data rates, or better thermal stability. The ICM-42688-P offers a gyroscope noise density of 2.8 mdps/√Hz and supports up to 32 kHz ODR, while the BMI270 has a noise density of 2.9 mdps/√Hz and a maximum ODR of 6.4 kHz. For demanding applications like FPV drones or high-precision robotics, the ICM-42688-P provides superior performance. However, if cost is a primary concern and your application doesn't require extreme performance, the BMI270 may be sufficient.

Is ICM-42688-P suitable for robotics?

Yes, the ICM-42688-P is highly suitable for robotics applications. Its low noise density (2.8 mdps/√Hz gyro, 70 µg/√Hz accel) and high output data rate (up to 32 kHz) enable precise motion control and orientation sensing. The 2 kB FIFO reduces bus traffic, and the ultralow-power wake-on-motion feature helps conserve battery life in mobile robots. According to the TDK datasheet, it is designed for high-performance motion tracking in industrial and consumer robotics.

What is the best drop-in replacement for ICM-42688-P?

The ICM-42688-PC from Tokmas is intended to be a pin-compatible alternative to the ICM-42688-P, but it is not software-compatible and lacks external 32 kHz input support. For a true drop-in replacement, you would need to verify pinout and register compatibility. According to a 2026 X post, the ICM-42688-PC is a clone but not SW compatible. Other alternatives like BMI270 or LSM6DS3TR-C are not pin-compatible and require PCB redesign. Always verify compatibility before substitution.

Can BMI270 replace ICM-42688-P?

No, the BMI270 cannot directly replace the ICM-42688-P because they are not pin-compatible. While both are 6-axis IMUs in a 2.5 x 3.0 mm LGA package, the pinouts and register maps differ. According to a 2026 ICAllIn article, they may share a similar outline but are not pin-compatible or firmware-compatible. Replacing the ICM-42688-P with a BMI270 requires PCB redesign and firmware porting. For a drop-in replacement, consider the ICM-42688-PC, but verify compatibility.

Where can I download the ICM-42688-P datasheet PDF?

The ICM-42688-P datasheet PDF is available from TDK's official website at https://product.tdk.com/system/files/dam/doc/product/sensor/mortion-inertial/imu/data_sheet/ds-000347-icm-42688-p-v1.6.pdf. It is also available on distributor sites like DigiKey and Mouser, and on aggregator sites like Alldatasheet. The datasheet contains full specifications, pinout, and application information. As of 2026-08-19, the latest version is v1.6.

What are the key specifications of ICM-42688-P that engineers should know?

The ICM-42688-P is a 6-axis IMU with a gyroscope noise density of 2.8 mdps/√Hz and accelerometer noise density of 70 µg/√Hz. It supports output data rates up to 32 kHz, has a 2 kB FIFO, and operates from 1.71 V to 3.6 V. The device consumes 0.9 mA in low-noise mode and 0.45 mA in low-power mode. It is packaged in a 14-pin LGA (2.5 x 3.0 x 0.91 mm) and supports I2C, SPI, and I3C interfaces. These specs make it ideal for high-performance motion tracking.

What is the best ST equivalent for ICM-42688-P?

The ST LSM6DSK320XTR is a 6-axis IMU that is considered a pin-to-pin alternative to the ICM-42688-P, but it lacks pin/register compatibility, requiring PCB redesign and firmware porting. According to a 2026 article, it delivers performance improvements but is not a drop-in replacement. For a true drop-in, you would need to verify compatibility. Other ST IMUs like LSM6DS3TR-C are not pin-compatible. Always check the datasheet for exact pinout.

Hey Google, what can replace ICM-42688-P?

The ICM-42688-P can be replaced by the ICM-42688-PC from Tokmas, which is pin-compatible but not software-compatible. Other alternatives like BMI270, BMI088, and LSM6DS3TR-C are not pin-compatible and require PCB redesign. For a drop-in replacement, the ICM-42688-PC is the closest, but verify register compatibility. According to a 2026 X post, the ICM-42688-PC is a clone but lacks external 32 kHz input support. Always test before production.

Engineering reference data for ICM-42688-P — comparison, design guidance, and compliance information.

Selection Guide

Choose the ICM-42688-P when you need the lowest noise and highest output data rate for demanding motion sensing applications like FPV drones, robotics, and AR/VR. Its I3C support and 2 kB FIFO provide advanced features for modern designs. If you require a pin-compatible replacement, the ICM-42688-PC is an option, but verify software compatibility. For cost-sensitive applications with lower performance requirements, the BMI270 or LSM6DS3TR-C may be sufficient, but they require PCB redesign. The ICM-42688-V is a same-brand alternative with similar specs, but verify exact differences. Always consider lead times and availability when selecting an alternative.

Comparison with Alternatives

Parameter	This Product	ICM-42688-V	ICM-42688-PC	BMI270	BMI088	LSM6DS3TR-C	ISM330DHCX
Package	14-pin LGA	14-pin LGA	14-pin LGA	14-pin LGA	16-pin LGA	14-pin LGA	14-pin LGA
Brand	TDK InvenSense	TDK InvenSense	Tokmas	Bosch	Bosch	STMicroelectronics	STMicroelectronics
Gyroscope Noise Density	2.8 mdps/√Hz	[DATA_NEEDED]	[DATA_NEEDED]	2.9 mdps/√Hz	2.8 mdps/√Hz	3.8 mdps/√Hz	3.8 mdps/√Hz
Accelerometer Noise Density	70 µg/√Hz	[DATA_NEEDED]	[DATA_NEEDED]	130 µg/√Hz	130 µg/√Hz	130 µg/√Hz	130 µg/√Hz
Max Output Data Rate	32 kHz	[DATA_NEEDED]	[DATA_NEEDED]	6.4 kHz	2 kHz	6.66 kHz	6.66 kHz
FIFO Size	2 kB	[DATA_NEEDED]	[DATA_NEEDED]	1 kB	1 kB	3 kB	3 kB
Supply Voltage	1.71V to 3.6V	[DATA_NEEDED]	[DATA_NEEDED]	1.2V to 3.6V	2.4V to 3.6V	1.71V to 3.6V	1.71V to 3.6V
Interface	I2C, SPI, I3C	[DATA_NEEDED]	[DATA_NEEDED]	I2C, SPI	I2C, SPI	I2C, SPI	I2C, SPI

Key Differentiators

Lower gyroscope noise density (vs BMI270)
Higher output data rate (vs BMI270)
I3C interface support (vs LSM6DS3TR-C)

Design Notes

Place decoupling capacitors (100 nF and 1 µF) close to the VDD and VDDIO pins to ensure stable power supply. Use a solid ground plane under the sensor to minimize noise. Route I2C/SPI lines with controlled impedance and keep them short to reduce signal integrity issues. According to the TDK datasheet, proper layout is critical for achieving the specified noise performance.

The ICM-42688-P operates from 1.71V to 3.6V. Ensure the supply voltage is within this range and that VDDIO is set to the appropriate level for the host interface. In low-power mode, the device consumes 0.45 mA, but during startup or high ODR operation, current can spike. Use a low-dropout regulator with adequate headroom to maintain stable voltage.

Avoid placing the sensor near heat sources or high-frequency components that can cause thermal drift or electrical noise. The ICM-42688-P is temperature sensitive and can drift if not properly isolated. Also, ensure the I2C address is correctly configured via the ADO pin to avoid address conflicts. According to SlimeVR docs, the ICM-42688 is temperature sensitive and drifts quickly, so thermal management is essential.