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Freescale Semiconductor Electronic Components Datasheet

MMA6222AKEG Datasheet

Analog Dual Axis Micromachined Accelerometer

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Freescale Semiconductor
Technical Data
MMA6222AKEG
Rev 0, 12/2009
Analog Dual Axis Micromachined
Accelerometer
The MMA62XXAKEG series of dual axis (X and Y) silicon capacitive,
micromachined accelerometers features a full digital signal processing for
filtering, trim and data formatting. It has been optimized for analog output and
offers an over-damped transducer.
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, 4 Pole, 16 µs sample time, additional filter options are available
• Ratiometric analog voltage output
• Capture/hold input for system-wide synchronization support
• 3.3 or 5 V single supply operation
• On-chip temperature sensor and voltage regulator
• Internal self-test
• Minimal external component requirements
• Pb-free 20-pin SOIC package
• Qualified AEC-Q100, Rev. F Grade 2 (-40°C/ +105°C)
Typical Applications
• Crash Detection (Airbag)
• Impact and vibration monitoring
• Shock detection
MMA6222AKEG
MMA6255AKEG
MMA621010AKEG
2-AXIS
ACCELEROMETER
KEG SUFFIX (Pb-free)
20-LEAD SOIC
CASE 475A-02
PIN CONNECTIONS
N/C
N/C
XOUT
VSSA
YOUT
CAP/HOLD
ST
VPP
CREG
RESET
1
2
3
4
5
6
7
8
9
10
20 N/C
19 N/C
18 CREGA
17 CREGA
16 CREF
15 CREF
14 VCC
13 VSS
12 STATUS
11 SCLK
20-PIN SOIC PACKAGE
N/C: NO INTERNAL CONNECTION
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Device Name
X-Axis g-Level
MMA6222AEG
20
MMA6222AEGR2
20
MMA6222AKEG*
20
MMA6222AKEGR2*
20
MMA6255AEG
50
MMA6255AEGR2
50
MMA6255AKEG*
50
MMA6255AKEGR2*
50
MMA621010AEG
100
MMA621010AEGR2
100
MMA621010AKEG*
100
MMA621010AKEGR2*
100
*Part number sourced from a different facility.
ORDERING INFORMATION
Y-Axis g-Level Temperature Range
20 -40 to +105°C
20 -40 to +105°C
20 -40 to +105°C
20 -40 to +105°C
50 -40 to +105°C
50 -40 to +105°C
50 -40 to +105°C
50 -40 to +105°C
100 -40 to +105°C
100 -40 to +105°C
100 -40 to +105°C
100 -40 to +105°C
Package
475A-02
475A-02
475A-02
475A-02
475A-02
475A-02
475A-02
475A-02
475A-02
475A-02
475A-02
475A-02
Packaging
Tubes
Tape & Reel
Tubes
Tape & Reel
Tubes
Tape & Reel
Tubes
Tape & Reel
Tubes
Tape & Reel
Tubes
Tape & Reel
© Freescale Semiconductor, Inc., 2009. All rights reserved.


Freescale Semiconductor Electronic Components Datasheet

MMA6222AKEG Datasheet

Analog Dual Axis Micromachined Accelerometer

No Preview Available !

VCC
100 nF 1 μF
VCC
CS
CREG
SCLK
CREGA
ST
CREF
STATUS
1 μF 100 nF MMA62XXAKEG
VSSA
VSS
VPP/TEST
XOUT
YOUT
CS_A
SCLK1
I/O
I/O
CS_D
SCLK2
MOSI2
MISO2
Main MCU
ADC
CS
SCLK
DI
DO
Deployment IC
Safing
Sensor(s)
Filter
/
Comparator
DEPLOY_EN1
DEPLOY_EN2
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 XOUT and YOUT. This is
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.
www.DataSheet4U.com
MMA6222AEG
2
Sensors
Freescale Semiconductor


Part Number MMA6222AKEG
Description Analog Dual Axis Micromachined Accelerometer
Maker Freescale Semiconductor
Total Page 16 Pages
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