The MMA8452Q is a low-power, 3-axis capacitive MEMS accelerometer with 12-bit resolution. Packed with embedded motion-detection functions and configurable interrupt outputs, it can monitor events autonomously while staying in a low-power state — reducing the need for the host processor to continuously poll data.

User-selectable full-scale ranges of ±2g, ±4g, and ±8g are available with both high-pass filtered and unfiltered data in real time. This is the bare IC in a QFN package — a breakout board or custom PCB is required for use.

Key Features

• 12-Bit Resolution – Also supports 8-bit output for faster reads
• Selectable Range – ±2g, ±4g, or ±8g full-scale
• I2C Interface – Up to 2.25 MHz with 4.7 kΩ pull-ups
• Two Programmable Interrupt Pins – Six configurable interrupt sources
• Embedded Motion Detection – Three channels, plus portrait/landscape orientation with hysteresis
• Ultra-Low Power – 6 µA to 165 µA current consumption
• Output Data Rates – 1.56 Hz to 800 Hz
• Real-Time High-Pass Filter – Filtered data available alongside raw output

Specifications

• Sensor IC: MMA8452Q
• Package: 3 × 3 × 1 mm QFN
• Supply Voltage: 1.95–3.6 V
• Interface Voltage: 1.6–3.6 V
• Interface: I2C
• Current Consumption: 6–165 µA

Ideal For

• Low-power motion and orientation sensing
• Wearable and portable device designs
• Inertial wake-up and tap detection applications
• Custom PCB designs requiring a compact accelerometer

Package Contents

• 1× MMA8452Q Accelerometer IC (QFN package)

Resources

• Datasheet (PDF)