Datasheet

Sensors
Freescale Semiconductor, Inc. 6
MMA7660FC
Figure 1. Pinout
Table 1. Pin Description
Figure 2. I
2
C Connection to MCU
RESERVED
DVDD
DVSS
SDA
SCL
RESERVED
N/C
AVDD
AVSS
INT
Top View
1
2
3
4
5
6
7
8
9
10
Pin # Pin Name Description
Pin
Status
1 RESERVED Connect to AVSS Input
2 N/C No Internal Connection, leave
unconnected or connect to Ground
Input
3 AVDD Device Power Input
4 AVSS Device Ground Input
5INT
Interrupt/Data Ready Output
6SCL
I
2
C Serial Clock
Input
7SDA
I
2
C Serial Data
Open
Drain
8 DVSS Digital I/O Ground Input
9 DVDD Digital I/O Power Input
10 RESERVED Connect to AVSS Input
RESERVED
DVDD
DVSS
SDA
SCL
RESERVED
N/C
AVDD
AVSS
INT
1
2
3
56
7
8
9
10
4
GND
VDDVDD
VDD
GND
MMA7660FC
SDA
SCL
INT
MCU
R1
4.70 K
R2
4.70 K
NOTE: A 0.1 μF ceramic capacitor can be placed connecting pin 3 (AVDD) to pin 4 (AVSS). In addition, another 0.1 μF
ceramic capacitor can be place connecting pin 9 (DVDD) to pin 8 (DVSS). The capacitors should be placed close
to the pins of the MMA7660FC and is recommended for testing and to adequately decouple the accelerometer
from noise on the power supply.
U13