Document Number: MMA68xx NXP Semiconductors Rev. 9.0, 01/2017 Data sheet: Technical data MMA68xx, Dual-axis SPI Inertial Sensor MMA68xx MMA68xx, a SafeAssure solution, is a SPI-based, 2-axis, medium-g, over- damped lateral accelerometer designed for use in automotive airbag systems. Features Bottom View 20 g to 120 g full-scale range, independently specified for each axis 3.3 V or 5 V single supply operation SPI-compatible serial interface 10-bit digital signed or unsigned SPI data output Independent programmable arming functions for each axis Twelve low-pass filter options, ranging from 50 Hz to 1000 Hz Pb-free, 16-pin QFN Optional offset cancellation with > 6 s averaging period and < 0.25 LSB/s 6 mm x 6 mm x 1.98 mm package slew rate Pb-free, 16-pin QFN, 6 mm x 6 mm x 1.98 mm package Top View Referenced Documents Qualified AEC-Q100, Revision G, Grade 1 (-40C to +125C) (xxxxxxx xxxxxxx 1 General Description 1.1 Application Diagram V CC V CS CS A CS D CS CC V SCLK SCLK1 SCLK2 SCLK REG MOSI V MOSI1 MOSI2 MOSI REGA MISO MISO MISO1 MISO2 C1 C2 C3 Main MCU Deployment IC MMA68xx V SSA DEPLOY EN1 ARM X V SS ARM Y DEPLOY EN2 V /TEST PP Figure 1. Application Diagram Table 1. External Component Recommendations Ref Des Type Description Purpose C1 Ceramic 0.1 F, 10 %, 10 V Minimum, X7R V Power Supply Decoupling CC C2 Ceramic 1 F, 10 %, 10 V Minimum, X7R Voltage Regulator Output Capacitor (C ) REG C3 Ceramic 1 F, 10 %, 10 V Minimum, X7R Voltage Regulator Output Capacitor (C ) REGA 1.2 Device Orientation and Part Marking xxxxxxx xxxxxxx X: 0 g X: 0 g X: 1 g X: 0 g X: 0 g X: +1 g Y: 1 g Y: +1 g Y: 0 g Y: 0 g Y: 0 g Y: 0 g EARTH GROUND Figure 2. Device Orientation Diagram Data Code Legend: A: Assembly Location WL: Wafer Lot Number (g-cell Lot Number) MMA68xx BKCW Y: Year AWLYWWZ WW: Work Week TTT Z: Assembly Lot Number Figure 3. Part Marking MMA68xx Sensors 2 NXP Semiconductors xxxxxxx xxxxxxx xxxxxxx xxxxxxx