Sensors

Freescale Semiconductor

5

MMA7455L

Table 1. Pin Descriptions

*This address selection capability is not enabled at the default state. If the user wants to use it, factory programming is required. If activated (pin4

on the device is active).

<$1C=0001 1100> bit 0 is GND on pin 4. If the pin is programmed it cannot be left NC.

Figure 1. Simplified Accelerometer Functional Block Diagram

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

Input

5

GND

Ground

Input

6

AVDD

Analog Power

Input

7CS

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

Leave unconnected or connect to Ground.

Input

12

SDO

SPI Serial Data Output

Output

13

SDA/SDI/SDO

14

SCL/SPC

Input