Sensors

Freescale Semiconductor, Inc.

6

MMA7660FC

Figure 1. Pinout

Table 1. Pin Description

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

Input

7SDA

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

VDD

VDD

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