Document Number: MMA7450L

Rev 0, 6/2007

Freescale Semiconductor

Technical Data

This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

© Freescale Semiconductor, Inc., 2007. All rights reserved.

±2g/±4g/±8g Three Axis Low-g

Digital Output Accelerometer

capacitive micromachined accelerometer featuring signal conditioning, a low

pass filter, temperature compensation, self test, configurable to detect 0g

through interrupt pins (INT1 or INT2), and pulse (click) detect for quick motion

detection. The 0g offset can be customer calibrated using assigned 0g

registers and g-Select which allows for command selection for 3 sensitivities

(2g/4g/8g). Zero-g offset and sensitivity are factory set and require no external

devices. The MMA7450L includes a Standby Mode that makes it ideal for

handheld battery powered electronics.

Features

•

•

3mm x 5mm x 0.8mm LGA-14 Package

•

Low Current Consumption: 400

μA

•

Sleep Mode: 5

μA

•

Low Voltage Operation: 2.4 V – 3.6 V

•

Customer Assigned Registers for Offset Calibration

•

Programmable Threshold Interrupt Output

•

Level/Pulse Detection for Motion Recognition (Shock, Vibration, Freefall)

•

Click Detection for Single or Double Click Recognition

•

High Sensitivity (64 LSB/g @ 2g and @ 8g in 10-Bit Mode)

•

Selectable Sensitivity (±2g, ±4g, ±8g)

•

Self Test for X-Axis

•

Robust Design, High Shocks Survivability (10,000 g)

•

RoHS Compliant

•

Environmentally Preferred Product

•

Low Cost

Typical Applications

•

Cell Phone/PMP/PDA: Image Stability, Text Scroll, Motion Dialing,

E-Compass, Tap to Mute

•

HDD: Freefall Detection

•

Laptop PC: Freefall Detection, Anti-Theft

•

Navigation and Dead Reckoning: Position Detection, Pedometer

•

E-Compass Tilt Compensation

•

3D Gaming: Tilt and Motion Sensing, Event Recorder

ORDERING INFORMATION

Part Number

Temperature Range

Package

Shipping

MMA7450LT

–20 to +65°C

LGA-14

Tray

MMA7450LR1

–20 to +65°C

LGA-14

Tape & Reel (7” Reel)

MMA7450LR2

–20 to +65°C

LGA-14

Tape & Reel (13” Reel)

MMA7450L

MMA7450L: XYZ AXIS

ACCELEROMETER

±2G/±4G/±8G

14 LEAD

LGA

CASE 1935-01

Bottom View

Figure 1. Pin Connections

Top View

AVdd

GND

DVdd_IO

INT1/DRDY

INT2

N/C

SDO

SDA/SDI/SDO

N/C

N/C

N/C

GND