MMA6222EGR2

MMA6222EGR2 Datasheet


The MMA62XXEG is a two-axis member of Freescale’s family of SPI-compatible accelerometers. These devices incorporate digital signal processing for filtering, trim and data formatting.

Part Datasheet
MMA6222EGR2 MMA6222EGR2 MMA6222EGR2 (pdf)
Related Parts Information
MMA6255EGR2 MMA6255EGR2 MMA6255EGR2
MMA621010EGR2 MMA621010EGR2 MMA621010EGR2
MMA6255EG MMA6255EG MMA6255EG
MMA6222EG MMA6222EG MMA6222EG
MMA621010EG MMA621010EG MMA621010EG
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Freescale Semiconductor Technical Data

Digital Dual Axis Micromachined Accelerometer

The MMA62XXEG is a two-axis member of Freescale’s family of SPI-compatible accelerometers. These devices incorporate digital signal processing for filtering, trim and data formatting.

Features
• 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 low-pass filter, Hz high-pass filter, 4-pole, 16 us sample time,
additional filter options are available
• Ratiometric analog voltage output
• 10-bit digital signed data output
• SPI-compatible serial interface
• Capture/hold input for system-wide synchronization support
• or 5 V single supply operation
• On-chip temperature sensor and voltage regulator
• Bidirectional internal self-test
• Minimal external component requirements
• Pb-free 20-pin SOIC package
• Automotive AEC-Q100 qualified

Typical Applications
• Crash detection Airbag
• Impact and vibration monitoring
• Shock detection

MMA6222EG MMA6255EG MMA621010EG
2-AXIS SPI-COMPATIBLE ACCELEROMETER

EG SUFFIX Pb-free 20-LEAD SOIC CASE 475A-02

PIN CONNECTIONS

XOUT

VSSA

YOUT

CAP/HOLD

CREG

CS/RESET
20 N/C
19 N/C

CREGA

CREGA

CREF

CREF

DOUT
11 SCLK
20-PIN SOIC PACKAGE N/C NO INTERNAL CONNECTION

Device Name

MMA6222EG MMA6222EGR2 MMA6255EG MMA6255EGR2 MMA621010EG MMA621010EGR2
ORDERING INFORMATION

X-Axis g-Level Y-Axis g-Level

Temperature Range
-40 to +105°C
-40 to +105°C
-40 to +105°C
-40 to +105°C
-40 to +105°C
-40 to +105°C

Package
475A-02 475A-02 475A-02 475A-02 475A-02 475A-02

Packaging

Tubes Tape & Reel

Tubes Tape & Reel

Tubes Tape & Reel

Freescale Semiconductor, Inc., All rights reserved.

VCC 100 nF 1 uF

CREG

SCLK

CREGA

CREF
1 uF 100 nF MMA62XXEG

VSSA VSS VPP/TEST

XOUT YOUT

CS_A SCLK1 MOSI1 MISO1

CS_D SCLK2 MOSI2 MISO2

Main MCU

CS SCLK DI DO

Deployment IC

Safing Sensor s

Filter /

Comparator

DEPLOY_EN1 DEPLOY_EN2

Note If one axis of the MMA62XXEG sensor is expected to be used as a confirmation of the other axis, Freescale recommends that MMA62XXEG used in conjunction with an additional sensing/safing device for each axis.

Figure 1-1 Simplified Airbag Application Diagram

INTRODUCTION

The MMA62XXEG is intended for applications which utilize serial communications as the primary data transfer mechanism. In addition, an analog output with lower accuracy is available. Device serial number, acceleration range, filter characteristics and status information are available along with acceleration data via the SPI interface. A pair of digital-to-analog converters is enabled to provide ratiometric voltage outputs in addition to the digital acceleration value accessible via the SPI.

MMA6222EG 2

Sensors Freescale Semiconductor

BLOCK DIAGRAM

A block diagram illustrating the major components of the design is shown in Figure
More datasheets: IDC04S60CEX7SA1 | IDC04S60CEX1SA1 | DBMMN17H2SN | CA02R28-21PXF80 | TLE82452SAAUMA1 | MMA6255EGR2 | MMA621010EGR2 | MMA6255EG | MMA6222EG | MMA621010EG


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Datasheet ID: MMA6222EGR2 635537