Data Sheet (DEMOMMA8491)Table of ContentsXtrinsic MMA8491Q 3-Axis Multifunction Digital Accelerometer11 Block Diagram and Pin Descriptions31.1 Block diagram31.2 Definition of acceleration directions31.3 Tilt detection outputs41.4 Pin descriptions51.5 Recommended application diagram62 Mechanical and Electrical Specifications72.1 Absolute maximum ratings72.2 Mechanical characteristics82.3 Electrical characteristics92.4 I2C interface characteristics103 Modes of Operation113.1 ACTIVE mode113.2 STANDBY mode113.3 Next sample acquisition113.4 Power-up timing sequences123.5 45° tilt detection123.6 Tilt angle134 Serial Interface (I2C)144.1 I2C operation144.2 Single byte read144.3 Multiple byte read155 Register Descriptions165.1 Register address map165.2 Register bit map165.3 Data registers175.3.1 0x00 Status register175.3.2 Accelerometer data registers (0x01-0x06)185.4 Accelerometer output conversion186 Mounting Guidelines196.1 Overview of soldering considerations196.2 Halogen content196.3 PCB mounting recommendations197 Tape and Reel217.1 Tape dimensions217.2 Label and device orientation218 Package Dimensions229 Revision History25Contact Info26Size: 429 KBPages: 26Language: EnglishOpen manual
User Manual (DEMOMMA8491)Table of ContentsDEMOMMA8491 Xtrinsic Accelerometer Evaluation Kit11 DEMOMMA8491 Demo Board21.1 Acceleration directions21.2 Using the demo board21.3 Acceleration values are cumulative32 DEMOMMA8491 Breakout Board42.1 Pin map42.2 Suggested application connections52.3 Soldering considerations52.4 Evaluating performance63 Schematics and Bill of Materials (BOM)63.1 Demo board schematic63.2 Demo board BOM63.3 Breakout board schematic73.4 Breakout board BOM74 Revision History8Contact Info9Size: 296 KBPages: 9Language: EnglishOpen manual
