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MMA7455LR2 Datasheet(PDF) 17 Page - Freescale Semiconductor, Inc

Part # MMA7455LR2
Description  Three Axis Low-g Digital Output Accelerometer
PDF  27 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MMA7455LR2 Datasheet(HTML) 17 Page - Freescale Semiconductor, Inc

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Sensors
Freescale Semiconductor
17
MMA7455L
UI2[7:0]: User information
Signed byte data (2’s compliment): User level offset trim value for X axis
*Note: Bit weight is for 2g 8bit data output. Typical value for reference only. Variation is specified in “Electrical Characteristics”
section.
Signed byte data (2’s compliment): User level offset trim value for X axis
Signed byte data (2’s compliment): User level offset trim value for Y axis
*Note: Bit weight is for 2g 8bit data output. Typical value for reference only. Variation is specified in “Electrical Characteristics”
section.
Signed byte data (2’s compliment): User level offset trim value for Y axis
*Note: Bit weight is for 2g 8bit data output. Typical value for reference only. Variation is specified in “Electrical Characteristics”
section.
$0E: User Information (Read Only: Optional)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
UI[7]
UI[6]
UI[5]
UI[4]
UI[3]
UI[2]
UI[1]
UI[0]
Function
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
Default
$0F: “Who Am I” value (Read only: Optional)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
ID[7]
ID [6]
ID [5]
ID [4]
ID [3]
ID [2]
ID [1]
ID [0]
Function
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
0/OTP
Default
$10: Offset drift X LSB (Read/Write)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
XOFF[7]
XOFF [6]
XOFF [5]
XOFF [4]
XOFF [3]
XOFF [2]
XOFF [1]
XOFF [0]
Function
0
0
0
0
0
0
0
0
Default
Bit
XOFF[7]
XOFF[6]
XOFF[5]
XOFF[4]
XOFF[3]
XOFF[2]
XOFF[1]
XOFF[0]
Weight
(*Note)
64 LSB
32 LSB
16 LSB
8 LSB
4 LSB
2 LSB
1 LSB
0.5 LSB
$11: Offset drift X MSB (Read/Write)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
--
--
--
--
--
XOFF [10]
XOFF [9]
XOFF [8]
Function
0
0
0
0
0
0
0
0
Default
$12: Offset drift Y LSB (Read/Write)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
YOFF[7]
YOFF [6]
YOFF [5]
YOFF [4]
YOFF [3]
YOFF [2]
YOFF [1]
YOFF [0]
Function
0
0
0
0
0
0
0
0
Default
Bit
YOFF[7]
YOFF[6]
YOFF[5]
YOFF[4]
YOFF[3]
YOFF[2]
YOFF[1]
YOFF[0]
Weight
(*Note)
64 LSB
32 LSB
16 LSB
8 LSB
4 LSB
2 LSB
1 LSB
0.5 LSB
$13: Offset drift Y MSB (Read/Write)
D7
D6
D5
D4
D3
D2
D1
D0
Bit
--
--
--
--
--
YOFF [10]
YOFF [9]
YOFF [8]
Function
0
0
0
0
0
0
0
0
Default
Bit
YOFF[10]
YOFF[9]
YOFF[8]
Weight
(*Note)
Polarity
256 LSB
128 LSB



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