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MMA8452Q Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc |
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MMA8452Q Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc |
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1 / 47 page  Freescale Semiconductor Document Number: MMA8452Q Data Sheet: Technical Data Rev. 5, 07/2012 An Energy-Efficient Solution by Freescale © 2012 Freescale Semiconductor, Inc. All rights reserved. 3-Axis, 12-bit/8-bit Digital Accelerometer The MMA8452Q is a smart low-power, three-axis, capacitive micromachined accelerometer with 12 bits 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 MMA8452Q has user selectable full scales of ±2g/±4g/±8g with high-pass filter filtered data as well as non-filtered data available real-time. The device can be configured to generate inertial wakeup interrupt signals from any combination of the configurable embedded functions allowing the MMA8452Q to monitor events and remain in a low power mode during periods of inactivity. The MMA8452Q is available in a 3 mm by 3 mm by 1 mm QFN package. Features • 1.95V to 3.6V supply voltage • 1.6V to 3.6V interface voltage • ±2g/±4g/±8g dynamically selectable full-scale • Output Data Rates (ODR) from 1.56 Hz to 800 Hz • 99 μg/√Hz noise • 12-bit and 8-bit digital output •I2C digital output interface • Two programmable interrupt pins for six interrupt sources • Three embedded channels of motion detection — Freefall or Motion Detection: 1 channel — Pulse Detection: 1 channel — Transient Detection: 1 channel – Orientation (Portrait/Landscape) detection with set hysteresis – Automatic ODR change for Auto-WAKE and return to SLEEP – High-Pass Filter Data available real-time –Self-Test – RoHS compliant – Current Consumption: 6 μA – 165 μA Typical Applications • eCompass applications • Static orientation detection (Portrait/Landscape, Up/Down, Left/Right, Back/ Front position identification) • Notebook, eReader and Laptop Tumble and Freefall Detection • Real-time orientation detection (virtual reality and gaming 3D user position feedback) • Real-time activity analysis (pedometer step counting, freefall drop detection for HDD, dead-reckoning GPS backup) • Motion detection for portable product power saving (Auto-SLEEP and Auto-WAKE for cell phone, PDA, GPS, gaming) • Shock and vibration monitoring (mechatronic compensation, shipping and warranty usage logging) • User interface (menu scrolling by orientation change, pulse detection for button replacement) ORDERING INFORMATION Part Number Temperature Range Package Description Shipping MMA8452QT -40°C to +85°C QFN-16 Tray MMA8452QR1 -40°C to +85°C QFN-16 Tape and Reel MMA8452Q 16 PIN QFN 3 mm by 3 mm by 1 mm CASE 2077-02 Top and Bottom View Top View Pin Connections 1 2 3 4 59 10 11 12 13 14 15 16 8 7 6 VDDIO BYP NC SCL GND NC GND INT1 GND INT2 |
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