MMA7456L(2009) 查看數據表（PDF） - Freescale Semiconductor

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MMA7456L
(Rev.:2009)

±2g/±4g/±8g Three Axis Low-g Digital Output Accelerometer

Freescale Semiconductor 

Table 1. Pin Descriptions

Pin #

1

2

3

4

5

6

Pin Name

DVDD_IO

GND

N/C

IADDR0

GND

AVDD

Digital Power for I/O pads

Description

Ground

No internal connection. Leave unconnected or connect to Ground.

I2C Address Bit 0 (optional)*

Ground

Analog Power

Pin Status

Input

Input

Input

Input

Input

Input

7

CS

SPI Enable (0), I2C Enable (1)

8

INT1/DRDY Interrupt 1/ Data Ready

Input

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 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

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

(pin 4 on the device is active).

<$1D = 0001 1101 > bit 0 is VDD on pin 4

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

Figure 2. Simplified Accelerometer Functional Block Diagram

Sensors

Freescale Semiconductor

MMA7456L

5

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