±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

Buy/Parametrics

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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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