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MMA7450L Datasheet PDF : 22 Pages
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Freescale Semiconductor
Technical Data
±2g/±4g/±8g Three Axis Low-g
Digital Output Accelerometer
The MMA7450L is a Digital Output (I2C/SPI), low power, low profile
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
• Digital Output (I2C/SPI) - 10-Bit at 8g Mode
• 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)
Document Number: MMA7450L
Rev 0, 6/2007
MMA7450L
MMA7450L: XYZ AXIS
ACCELEROMETER
±2G/±4G/±8G
Bottom View
14 LEAD
LGA
CASE 1935-01
Top View
INT1/DRDY
INT2
N/C
N/C
SDO
SDA/SDI/SDO
AVdd
GND
N/C
N/C
GND
DVdd_IO
Figure 1. Pin Connections
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.
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