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MMA7455LR2 Datasheet(PDF) 12 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) 12 Page - Freescale Semiconductor, Inc

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Sensors
12
Freescale Semiconductor
MMA7455L
BASIC CONNECTIONS
Pin Descriptions
Figure 14. Pinout Description
Recommended PCB Layout for Interfacing Accelerometer to Microcontroller
Figure 15. I2C Connection to MCU
AVdd
GND
DVdd_IO
INT1/DRDY
INT2
N/C
SDO
SDA/SDI/SDO
Reserved
IADDR0
N/C
GND
Top View
PIN DESCRIPTIONS
1
DVDD_IO
Digital Power for I/O pads
Input
2
GND
Ground
Input
3
N/C
No Connection or Connect to
Ground
Input
4
IADDR0
I2C Address Bit 0
Input
5
GND
Ground (optional)
Input
6
AVDD
Analog Power
Input
7CS
SPI Enable (0), I2C Enable (1)
Input
8INT1/
DRDY
Interrupt 1/ Data Ready
Output
9
INT2
Interrupt 2
Output
10
N/C
Rev 1: No Connection or Ground
Input
11
Reserved
Ground
Input
12
SDO
SPI Serial Data Output
Output
13
SD(A/I/O)
I2C Serial Data (SDA), SPI Serial
Data Input (SDI), 3-wire interface
Serial Data Output (SDO)
Open
Drain/
Input/
Output
14
SCL/SPC
I2C Serial Clock (SCL), SPI Serial
Clock (SPC)
Input
GND
Vdd
Vdd_IO
SCL
SDA
INT2
INT1/DRDY
MCU
0.1uF
0.1uF
Address set bit (bit 0)
Vdd
Vdd
10uF
10uF
10k
?
10k
?
GND
Vdd
Vdd_IO
SCL
SDA
INT2
INT1/DRDY
MCU
0.1uF
0.1uF
Address set bit (bit 0)
Vdd
Vdd
10uF
10uF
10k
?
10k
?
R2
R1



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