MMA6222AKEG Freescale Semiconductor Rev 0, 12/2009 Technical Data Analog Dual Axis Micromachined MMA6222AKEG Accelerometer MMA6255AKEG The MMA62XXAKEG series of dual axis (X and Y) silicon capacitive, micromachined accelerometers features a full digital signal processing for MMA621010AKEG filtering, trim and data formatting. It has been optimized for analog output and offers an over-damped transducer. 2-AXIS Features ACCELEROMETER Available in 20/20g, 50/50g, or 100/100g versions. Additional g-ranges between 20 and 100g may be available upon request Full-scale range is independently specified for each axis 400 Hz, 4 Pole, 16 s sample time, additional filter options are available Ratiometric analog voltage output Capture/hold input for system-wide synchronization support KEG SUFFIX (Pb-free) 20-LEAD SOIC 3.3 or 5 V single supply operation CASE 475A-02 On-chip temperature sensor and voltage regulator Internal self-test PIN CONNECTIONS Minimal external component requirements N/C 1 20 N/C Pb-free 20-pin SOIC package N/C 2 19 N/C Qualified AEC-Q100, Rev. F Grade 2 (-40C/ +105 C) X 3 18 C OUT REGA V 4 17 C SSA REGA Typical Applications Y 5 16 C OUT REF Crash Detection (Airbag) CAP/HOLD 6 15 C REF ST 7 14 V Impact and vibration monitoring CC V 8 13 V PP SS Shock detection C 9 12 STATUS REG RESET 10 11 SCLK 20-PIN SOIC PACKAGE N/C: NO INTERNAL CONNECTION ORDERING INFORMATION Device Name X-Axis g-Level Y-Axis g-Level Temperature Range Package Packaging MMA6222AEG 20 20 -40 to +105C 475A-02 Tubes MMA6222AEGR2 20 20 -40 to +105C 475A-02 Tape & Reel MMA6222AKEG* 20 20 -40 to +105C 475A-02 Tubes MMA6222AKEGR2* 20 20 -40 to +105C 475A-02 Tape & Reel MMA6255AEG 50 50 -40 to +105C 475A-02 Tubes MMA6255AEGR2 50 50 -40 to +105C 475A-02 Tape & Reel MMA6255AKEG* 50 50 -40 to +105C 475A-02 Tubes MMA6255AKEGR2* 50 50 -40 to +105C 475A-02 Tape & Reel MMA621010AEG 100 100 -40 to +105C 475A-02 Tubes MMA621010AEGR2 100 100 -40 to +105C 475A-02 Tape & Reel MMA621010AKEG* 100 100 -40 to +105C 475A-02 Tubes MMA621010AKEGR2* 100 100 -40 to +105C 475A-02 Tape & Reel *Part number sourced from a different facility. Freescale Semiconductor, Inc., 2009. All rights reserved.V CC V CS A CS D CS CC CS C REG SCLK SCLK1 SCLK2 SCLK C ST DI REGA I/O MOSI2 DO STATUS I/O MISO2 C REF 100 nF 1 F 1 F 100 nF MMA62XXAKEG Main MCU XOUT V SSA Deployment IC V YOUT SS ADC V /TEST PP Safing Filter DEPLOY EN1 / Sensor(s) DEPLOY EN2 Comparator Note: If one axis of the MMA62XXAKEG sensor is expected to be used as a confirmation of the other axis, Freescale recommends that MMA62XXAKEG used in conjunction with an additional sensing/safing device for each axis. Figure 1-1 Simplified Airbag Application Diagram 1.1 INTRODUCTION The MMA62XXKEG is trimmed to provide the most accurate voltage representation of acceleration at X and Y . This is OUT OUT done by adjusting the signal within the DSP to compensate for errors within the digital-to-analog converters. The SPI is disabled when the device is in normal operating mode, and dedicated ST (self-test activation) and STATUS pin functions are assigned. MMA6222AEG Sensors 2 Freescale Semiconductor