The MMA8452QT is a smart low-power, three-axis, capacitive Micromachined Accelerometer with 12 bits of resolution. This accelerometer is packed with embedded functions with flexible user-programmable options, configurable to two interrupt pins. Embedded interrupt functions allow for overall power savings relieving the host processor from continuously polling data. It has user-selectable full scales of ±2/±4/±8g with high-pass filtered data as well as non-filtered data available real-time. The device can be configured to generate inertial wake-up interrupt signals from any combination of the configurable embedded functions allowing the accelerometer to monitor events and remain in a low-power mode during periods of inactivity.
1.6 to 3.6V Interface Voltage
±2/±4/±8g Dynamically Selectable Full-scale
Output Data Rates (ODR) from 1.56 to 800Hz
99μg/√Hz Noise
12-bit and 8-bit Digital Output
I2C Digital Output Interface (Operates to 2.25MHz with 4.7kR Pull-up)
Two Programmable Interrupt Pins for Six Interrupt Sources
Three Embedded Channels of Motion Detection, such as Freefall or Motion, Pulse and Jolt Detection
Orientation (Portrait/Landscape) Detection with Set Hysteresis
Automatic ODR Change for Auto-wake and Return to Sleep
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