Document Number: MMA7341LC Freescale Semiconductor Rev 2, 08/2011 Data Sheet: Technical Data 3g, 9g Three Axis Low-g Micromachined Accelerometer MMA7341LC The MMA7341LC is a low power, low profile capacitive micromachined accelerometer featuring signal conditioning, a 1-pole low pass filter, temperature compensation, self test, and g-Select which allows for the selection between two sensitivities. Zero-g offset and sensitivity are factory set and require no external devices. The MMA7341LC includes a Sleep Mode MMA7341LC: XYZ AXIS that makes it ideal for handheld battery powered electronics. ACCELEROMETER 3g, 9g Features 3mm x 5mm x 1.0mm LGA-14 Package Low Current Consumption: 400 A Sleep Mode: 3 A Low Voltage Operation: 2.2 V 3.6 V Bottom View Selectable Sensitivity (3g, 9g) Fast Turn On Time (0.5 ms Enable Response Time) Self Test for Freefall Detect Diagnosis Signal Conditioning with Low Pass Filter Robust Design, High Shocks Survivability RoHS Compliant Environmentally Preferred Product 14 LEAD Low Cost LGA CASE 1977-01 Typical Applications 3D Gaming: Tilt and Motion Sensing, Event Recorder HDD MP3 Player: Freefall Detection Laptop PC: Freefall Detection, Anti-Theft Top View Cell Phone: Image Stability, Text Scroll, Motion Dialing, eCompass N/C Pedometer: Motion Sensing PDA: Text Scroll N/C Navigation and Dead Reckoning: eCompass Tilt Compensation SelfTest Robotics: Motion Sensing N/C X OUT Y N/C OUT ORDERING INFORMATION Z g-Select OUT V Temperature Package N/C SS Part Number Package Shipping Range Drawing V N/C DD MMA7341LCT -40 to +85C 1977-01 LGA-14 Tray MMA7341LCR1 -40 to +85C 1977-01 LGA-14 7 Tape & Reel Sleep MMA7341LCR2 -40 to +85C 1977-01 LGA-14 13 Tape & Reel Figure 1. Pin Connections Freescale Semiconductor, Inc., 2010, 2011. All rights reserved. 6 5 4 3 2 1 7 14 8 9 10 11 12 13VV DDDD g-g-SeleSelecctt CLCLOOCKCK X-X-TTEEMMPP OSOSCCIILLLLAATTOROR XX OUTOUT GEGENN COCOMPMP GAINGAIN G-CG-CEELLLL C toC to V V Y-Y-TTEEMMPP SSlleepeep ++ YY SENSORSENSOR OUOUTT CONVCONVEERTRTEERR COCOMPMP FIFILLTTEERR CONTCONTROL LOROL LOGGIICC Z-Z-TTEEMPMP SESELLFFTTESESTT NVM TNVM TRRIMIM ZZ OUOUTT COCOMPMP CCIIRCRCUIUITTSS SeSelflf T Teesstt VV SSSS Figure 2. Simplified Accelerometer Functional Block Diagram Table 1. Maximum Ratings (Maximum ratings are the limits to which the device can be exposed without causing permanent damage.) Rating Symbol Value Unit Maximum Acceleration (all axis) g 5000 g max Supply Voltage V -0.3 to +3.6 V DD (1) Drop Test D 1.8 m drop Storage Temperature Range T -40 to +125 C stg 1. Dropped onto concrete surface from any axis. ELECTRO STATIC DISCHARGE (ESD) WARNING: This device is sensitive to electrostatic discharge. Although the Freescale accelerometer contains internal alter the performance or cause failure of the chip. When 2000 V ESD protection circuitry, extra precaution must be handling the accelerometer, proper ESD precautions should taken by the user to protect the chip from ESD. A charge of be followed to avoid exposing the device to discharges which over 2000 volts can accumulate on the human body or may be detrimental to its performance. associated test equipment. A charge of this magnitude can MMA7341LC Sensors 2 Freescale Semiconductor