FREESCALE SEMICONDUCTOR  MMA8451QT  MEMS Accelerometer, 3-Axis, Digital, X, Y, Z, ± 2g, ± 4g, ± 8g, 1.95 V, 3.6 V, QFN


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Product Overview

The MMA8451QT is a smart low-power, three-axis capacitive Micromachined Accelerometer with 14 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. There is access to both low-pass filtered data as well as high-pass filtered data, which minimizes the data analysis required for jolt detection and faster transitions. 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
  • 14-bit and 8-bit Digital Output
  • I²C Digital Output Interface (Operates to 2.25MHz with 4.7kΩ Pull-up)
  • Two Programmable Interrupt Pins for Seven Interrupt Sources
  • Three Embedded Channels of Motion Detection, such as Freefall or Motion, Pulse and Jolt Detection
  • 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 FIFO
  • Self-test
  • 6 to 165μA Current Consumption


Sensing & Instrumentation; Consumer Electronics; Computers & Computer Peripherals
ESD sensitive device, take proper precaution while handling the device, device is sensitive to mechanical shock, improper handling can cause permanent damage of part or cause part to otherwise fail.
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Product Specifications, Documents & More

  • Acceleration Range: ± 2g, ± 4g, ± 8g
  • MEMS Sensor Output: Digital
  • MSL: MSL 3 - 168 hours
  • Measurement Axis: X, Y, Z
  • No. of Pins: 16
  • Packaging: Each
  • SVHC: No SVHC (17-Dec-2014)
  • Sensitivity Max: -
  • Sensitivity Min: -
  • Sensitivity Typ: 1024counts/g, 2048counts/g, 4096counts/g
  • Sensor Case Style: QFN
  • Supply Voltage Max: 3.6V
  • Supply Voltage Min: 1.95V
  • Supply Voltage Range: 1.95V to 3.6V

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Availability:  4,899

  • 4,899 in stock for same day shipping
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    More stock available week commencing 12/28/15

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Price: $1.65 $1.65



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10 - 24 $1.59
25 - 99 $1.49
100 - 249 $0.968
250+ $0.93

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