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MMA7456LR2 Datasheet(PDF) 19 Page - Freescale Semiconductor, Inc

Part # MMA7456LR2
Description  짹2g/짹4g/짹8g Three Axis Low-g Digital Output Accelerometer
PDF  36 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MMA7456LR2 Datasheet(HTML) 19 Page - Freescale Semiconductor, Inc

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Sensors
Freescale Semiconductor
19
MMA7456L
BASIC CONNECTIONS
Pin Descriptions
Figure 14. Pinout Description
Table 8. Pin Descriptions
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
N/C
IADDR0
N/C
GND
Top View
Pin #
Pin Name
Description
Pin
Status
1
DVDD_IO
Digital Power for I/O pads
Input
2
GND
Ground
Input
3
N/C
No internal connection. Leave
unconnected or connect to Ground.
Input
4
IADDR0
I2C Address Bit 0
Input
5
GND
Ground
Input
6
AVDD
Analog Power
Input
7CS
SPI Enable (0), I2C Enable (1)
Input
8
INT1/DRDY
Interrupt 1/ Data Ready
Output
9
INT2
Interrupt 2
Output
10
N/C
No internal connection. Leave
unconnected or connect to Ground.
Input
11
N/C
No internal connection. Leave
unconnected or connect to Ground.
Input
12
SDO
SPI Serial Data Output
Output
13
SDA/SDI/SDO 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
VDD
VDD
VDD
VDD



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