±2g/±4g/±8g, Low g, 14-bit Digital Accelerometer


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Block Diagram

MMA8452Q Acceleration Sensor Block Diagram

MMA8452Q Acceleration Sensor Block Diagram


  • 1.95 to a 3.6-volt supply voltage
  • 1.6 to 3.6-volt interface voltage
  • ±2g/±4g/±8g dynamically selectable full-scale
  • Output data rates (ODR) from 1.56 Hz to 800 Hz
  • 99 μg/√Hz noise
  • 14-bit and 8-bit digital output
  • I²C digital output interface (operates to 2.25 MHz with 4.7 kΩ pull-ups)
  • Two programmable interrupt pins for seven interrupt sources
  • Three embedded channels of motion detection
    • Freefall or motion detection: one channel
    • Pulse detection: one channel
    • Jolt detection: one channel
  • Orientation (portrait/landscape) detection with programmable hysteresis
  • Automatic ODR change for auto-wake and return to sleep
  • 32 sample FIFO
  • High pass filter data available per sample and through the FIFO
  • Self-test
  • RoHS compliant
  • Current consumption: 6 μA–165 μA
  • This product is included in NXP®.s product longevity program, with assured supply for a minimum of 10 years after launch


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