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

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This product is in “End of Life” status, we recommend FXLS8971CF or FXLS8974CF as a replacement. In cases where MMA845xQ is absolutely required, customers may reach out to Rochester electronics to check available stock.

The NXP® MMA8451Q is a low-power, three-axis capacitive micromachined accelerometer with 14 bits of resolution, featuring:

Embedded functions with flexible user-programmable options, configurable to two interrupt pins
Embedded interrupt functions for overall power savings relieving the host processor from continuously polling data
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
Inertial wake-up interrupt signals from any combination of the configurable embedded functions allowing the MMA8451Q to monitor events and remain in a low-power mode during periods of inactivity

Data Sheet

Application Notes

Product Details

Block Diagram

MMA8452Q Acceleration Sensor Block Diagram

Get diagram PDF

Features

Key Features

1.95 to a 3.6 V supply voltage
1.6 to 3.6 V 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
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

Three Embedded Channels of Motion Detection

Freefall or motion detection: one channel
Pulse detection: one channel
Jolt detection: one channel

Product Longevity Program

This product is included in the NXP Product Longevity program with assured supply for a minimum of 10 years after launch

Part numbers include: MMA8451Q, MMA8451QT.

Buy/Parametrics

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Documentation

Quick reference to our documentation types.

1-5 of 24 documents

^{Data Sheet}
MMA8451Q, 3-Axis, 14-bit/8-bit Digital Accelerometer - Data SheetFeatured
PDFRev 10.3Feb 3, 2017964.5 KBMMA8451QEnglish
Supported Parts
^{Application Note}
AN4068, Embedded Orientation Detection Using the MMA8451, 2, 3Q - Application NotesFeatured
PDFRev 2Oct 31, 2011284.6 KBAN4068English
Supported Parts
^{Application Note}
AN4071, High-Pass Filtered Data and Transient Detection Using the MMA8451, 2, 3Q - Application NotesFeatured
PDFRev 1Oct 31, 2011418.4 KBAN4071English
Supported Parts
^{Application Note}
AN4070, Motion and Freefall Detection Using the MMA8451, 2, 3Q - Application NotesFeatured
PDFRev 1Oct 31, 2011399.8 KBAN4070English
Supported Parts
^{Application Note}
AN4073, Using the 32 Sample First In First Out (FIFO) in the MMA8451Q - Application NotesFeatured

PDFRev 1Jul 20, 2012345.0 KBAN4073English
^{Application Note}
AN4076, Data Manipulation and Basic Settings of the MMA8451, 2, 3Q - Application NotesFeatured
PDFRev 1Feb 7, 2012503.5 KBAN4076English
Supported Parts
^{Application Note Software}
AN4076 Example Code to accompany application note AN4076Featured

ZIPRev 2Aug 15, 2013264.0 KBAN4076SWEnglish
^{Data Sheet}
MMA8453Q, 3-Axis, 10-bit/8-bit Digital Accelerometer - Data Sheet
PDFRev 7.1Feb 3, 2017865.6 KBMMA8453QEnglish
Supported Parts
^{Data Sheet}
MMA8452Q, 3-Axis, 12-bit/8-bit Digital Accelerometer - Data Sheet
PDFRev 10Apr 29, 2016498.4 KBMMA8452QEnglish
Supported Parts
^{Application Note}
AN4399, High Precision Calibration of a Three-Axis Accelerometer - Application Notes
PDFRev 2.0Oct 20, 2015500.3 KBAN4399English
Supported Parts
^{Application Note}
AN4085, Tips for troubleshooting the MMA865x/MMA845x/MMA8491 Sensor Toolbox Communication Issues - Application Note

PDFRev 0Jan 30, 20141.1 MBAN4085English
^{Application Note}
AN4077, MMA845xQ Design Checklist and Board Mounting Guidelines - Application Notes

PDFRev 2Oct 31, 2012222.2 KBAN4077English
^{Application Note}
AN4074, Auto-Wake/Sleep Using the MMA8451, 2, 3Q - Application Notes
PDFRev 1Mar 14, 2012218.5 KBAN4074English
Supported Parts
^{Application Note}
AN4069, Offset Calibration of the MMA8451, 2, 3Q - Application Notes
PDFRev 1Mar 14, 2012179.5 KBAN4069English
Supported Parts
^{Application Note}
AN4317, How to Convert 3-Axis Directions and Swap X-Y Axis of Accelerometer Data within Android ™ Driver - Application Notes
PDFRev 0Aug 17, 2011176.6 KBAN4317English
Supported Parts
^{Application Note}
AN4075, The Trade-off Between High Resolution and Low Power Using Oversampling Modes - Application Notes

PDFRev 1Sep 13, 2010234.7 KBAN4075English
^{Application Note}
AN4072, MMA8451, 2, 3Q Single/Double and Directional Tap Detection - Application Notes

PDFRev 0Sep 3, 2010595.9 KBAN4072English
^{User Guide}
E-Compass Sensor Toolbox User’s Guide

PDFRev 2Apr 22, 2013978.9 KBECOMPASSSTUGEnglish
^{User Guide}
MMA845xQSTUG.fm
PDFRev 1Feb 29, 20122.0 MBMMA845XQSTUGEnglish
Supported Parts
^Brochure
Motion and Pressure Sensors for Medical Applications - Brochure

PDFRev 2Jan 11, 20191.2 MBMEDSENSORSA4BREnglish
^{Fact Sheet}
Sensor Solutions

PDFRev 13Feb 12, 20202.2 MBSNSRSOLUTNTMFSEnglish
^{Selector Guide}
Sensor Product Selector Guide

PDFRev 13May 13, 2024253.0 KBSENSSELECTEnglish
^{White Paper}
The Role of Sensor Fusion and Remote Emotive Computing (REC) in the Internet of Things (IoT) - White Paper

PDFRev 1Jul 9, 20133.6 MBSENFEIOTLFWPEnglish, 中文
^{White Paper}
Taking Advantage of a Certified Platform for Microsoft’s Windows® 8 Sensor Interface

PDFRev 0Apr 5, 2013709.4 KBWINDOWS8WPEnglish

Show All

Design Resources

Design Files

Quick reference to our design files types.

2 design files

Receive the full breakdown. See the product footprint and more in the eCad file.

^Models
NXP® E-Compass Software

Download Options
^{Printed Circuit Boards and Schematics}
TWRPI-MMA845xQ Schematic

PDFRev BMay 17, 2013 00:00:0063.4 KBSCH-27111
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