 Freescale Semiconductor's MMA8450Q accelerometer is an intelligent low power and low noise, 3mm x 3mm x 1mm capacitive micromachined accelerometer featuring 12 bits of resolution. This accelerometer is packed with many flexible user programmable embedded functions that are available with two configurable interrupt pins. MMA8450Q has user selectable full scales of ±2g/±4g/±8g, and it is capable of measuring accelerations with output data rates (ODR) of 400Hz, 200Hz, 100Hz, 50Hz, 12.5Hz, and 1.563Hz. These output data rates correspond to sample intervals from 2.5ms to 640ms.
The device can be configured to generate inertial wakeup interrupt signals when a programmable acceleration threshold is crossed on any one of the three sensed axes. Acceleration and time thresholds of interrupt generators are programmable by the end user.
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