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Daughter Board, Tower System Plug-In Module, MMA8451Q 3-Axis Accelerometer

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TWRPI-MMA845XQ   Datasheet
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Product Information

Texas Instruments
K40 Family Tower System Modules
Development Board for MMA8451Q Plug In Module, User Guide
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Product Overview

The TWRPI-MMA845XQ is a tower system plug in module for MMA8451Q accelerometer. The MMA8451Q is a smart low power, three axis capacitive micro machined accelerometer with 14bits 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. The TWRPI-MMA845XQ accelerometer quite literally accelerates design time. It has MMA8451Q Xtrinsic three axis accelerometer with 14bits of resolution and brings freefall/motion, pulse and jolt detection to life in designs. Simply place the TWRPI-MMA845XQ Xtrinsic accelerometer plug in onto a parent controller or peripheral module in the tower system and start prototyping quickly and easily.
  • Smart low power, three axis, capacitive micro machined accelerometer with 14bits of resolution
  • Programmable interrupts
  • Freefall/motion, pulse and jolt detection
  • Compatible with the tower system modules that utilize swappable (tower) plug ins (TWRPIs)
  • High pass filter data available per sample and through the FIFO
  • Automatic ODR change for auto wake and return to sleep
  • 32 sample FIFO
  • Two programmable interrupt pins for seven interrupt sources
  • Output data rate (ODR) from 1.56Hz to 800Hz
  • ±2g/±4g/±8g dynamically selectable full scale


Sensing & Instrumentation, Consumer Electronics, Portable Devices, System Monitoring


TWRPI-MMA8451Q plug in module, Quick start guide document.


This device is sensitive to mechanical shock. Improper handling can cause permanent damage of the part or cause the part to otherwise fail.


ESD sensitive device, take proper precaution while handling the device.

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