MMA6856QR2

Freescale Semiconductor Technical Data www.DataSheet4U.com MMA685x Rev 1, 05/2010 Single Axis SPI Inertial Sensor MMA685x is a SPI-based, single axis, medium-g, over-damped lateral accelerometer designed for use in automotive airbag systems. Features ±20g to ±120 g full-scale range 3.3 V or 5 V single supply operation SPI-compatible serial interface 10-bit digital signed or unsigned SPI data output Programmable arming functions Twelve low-pass filter options, ranging from 50 Hz to 1000 Hz Optional offset cancellation with > 6s averaging period and < 0.25 LSB/s slew rate Pb-Free 16-Pin QFN-6x6 Package SINGLE AXIS SPI INERTIAL SENSOR MMA685x Bottom View Referenced Documents AEC-Q100, Revision G, dated May 14, 2007 16-PIN QFN CASE 1477-02 Top View VSSA VSSA 12 CS 11 MOSI 10 SCLK 9 VCC 5 N/C 6 ARM/PCM 7 TEST/VPP 8 MISO N/C N/C ORDERING INFORMATION Device MMA6851QR2 MMA6852QR2 MMA6853QR2 MMA6854QR2 MMA6855QR2 MMA6856QR2 Axis X X X X X X Axis Range ±25g ±35g ±50g ±75g ±120g ±60g Shipping Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel 16 15 14 13 VREGA 1 VSS 2 VREG 3 VSS 4 17 PIN CONNECTIONS © Freescale Semiconductor, Inc., 2010. All rights reserved. www.DataSheet4U.com VCC VCC VREG VREGA CS SCLK MOSI MISO CS_A SCLK1 MOSI1 MISO1 CS_D SCLK2 MOSI2 MISO2 CS SCLK MOSI MISO C1 C2 C3 MMA685x VSSA VSS VPP/TEST ARM Main MCU Deployment IC DEPLOY_EN Figure 1. Application Diagram Table 1. External Component Recommendations Re...