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Freescale SemIConductor Document Number: MMA7660FC
Rev 4, 6/2009
Technical Data
3-Axis Orientation/Motion
Detection Sensor MMA7660FC
The MMA7660FC is a ±1.5 g 3-Axis Accelerometer with Digital Output
2
(I C). It is a very low power, low profile capacitive MEMS sensor
featuring a low pass filter, compensation for 0g offset and gain errors,
MMA7660FC: XYZ-AXIS
and conversion to 6-bit digital values at a user configurable samples  ACCELEROMETER
per second. The device can be used for sensor data changes, product  ±1.5 g
orientation, and gesture detection through an interrupt pin (INT). The
device is housed in a small 3mm x 3mm x 0.9mm DFN package.
Bottom View
Features
2
* Digital Output (I C)
* 3mm x 3mm x 0.9mm DFN Package
* Low Power Current Consumption: Off Mode: 0.4 μA,
Standby Mode: 2 μA, Active Mode: 47 μA at 1 ODR
* Configurable Samples per Second from 1 to 120 samples a second.
* Low Voltage Operation:
– Analog Voltage: 2.4 V - 3.6 V
10 LEAD
– Digital Voltage: 1.71 V - 3.6 V
DFN
* Auto-Wake/Sleep Feature for Low Power Consumption CASE 2002-03
* Tilt Orientation Detection for Portrait/Landscape Capability
* Gesture Detection Including Shake Detection and Tap Detection
Top View
* Robust Design, High Shocks Survivability (10,000 g)
* RoHS Compliant
* Halogen Free
* Environmentally Preferred Product
RESERVED 1 10 N/C
* Low Cost
N/C 2 9 DVDD
Typical Applications
8
AVDD 3 DVSS
* Mobile Phone/ PMP/PDA: Orientation Detection (Portrait/Landscape),
AVSS 4 7 SDA
Image Stability, Text Scroll, Motion Dialing, Tap to Mute
INT 5 6 SCL
* Laptop PC: Anti-Theft
* Gaming: Motion Detection, Auto-Wake/Sleep For Low Power
Consumption
Figure 1. Pin Connections
* Digital Still Camera: Image Stability
ORDERING INFORMATION
Part Number Temperature Range Package Shipping
MMA7660FCT –40 to +85°C DFN-10 Tray
MMA7660FCR1 –40 to +85°C DFN-10 7” Tape & Reel
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
(C) Freescale Semiconductor, Inc., 2009. All rights reserved.

Contents
DEFINITIONS ...............................................................................................................................................................................5
ELECTRO STATIC DISCHARGE (ESD) ......................................................................................................................................7
PRINCIPLE OF OPERATION ......................................................................................................................................................9
MODES OF OPERATION ..........................................................................................................................................................10
CONFIGURABLE SAMPLES PER SECONDS AND INTERRUPT SETTINGS .........................................................................11
POWER SAVING FEATURES ...................................................................................................................................................11
TESTING THE LOGIC CHAIN  ...................................................................................................................................................11
FEATURES ................................................................................................................................................................................11
Tap Detection ......................................................................................................................................................................13
Shake Detection ..................................................................................................................................................................13
Auto-Wake/Sleep ................................................................................................................................................................13
REGISTER DEFINITIONS .........................................................................................................................................................14
SERIAL INTERFACE .................................................................................................................................................................22
Serial-Addressing ................................................................................................................................................................22
Start and Stop Conditions ...................................................................................................................................................22
Bit Transfer ..........................................................................................................................................................................22
AcknowLEDge .......................................................................................................................................................................23
The Slave Address ..............................................................................................................................................................23
Message Format for Writing MMA7660FC ..........................................................................................................................23
Message Format for Reading MMA7660FC ........................................................................................................................24
APPENDIX A – PACKAGE REQUIREMENTS FOR MMA7660FC ............................................................................................25
Minimum Recommended Footprint for Surface Mounted Applications ...............................................................................25
Soldering And Mounting Guidelines for the DFN Accelerometer Sensor to a PC Board ....................................................25
Overview of Soldering Considerations ................................................................................................................................25
Halogen Content .................................................................................................................................................................25
PCB Mounting Recommendations ......................................................................................................................................25
APPENDIX B - SENSING DIRECTION ......................................................................................................................................27
APPENDIX C - MMA7660FC ACQUISITION CODE TABLE .....................................................................................................28