Freescale Semiconductor
Technical Data
Document Number: MMA7455L
Rev 5, 11/2008
±2g/±4g/±8g Three Axis Low-g
Digital Output Accelerometer
The MMA7455L is a Digital Output (I
2
C/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 detect for quick motion
detection. 0g offset and sensitivity are factory set and require no external
devices. The 0g offset can be customer calibrated using assigned 0g registers
and g-Select which allows for command selection for 3 acceleration ranges
(2g/4g/8g). The MMA7455L includes a Standby Mode that makes it ideal for
handheld battery powered electronics.
Features
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Digital Output (I
2
C/SPI)
3mm x 5mm x 1mm LGA-14 Package
Low Current Consumption
Self-Test for Z-Axis
Low Voltage Operation: 2.4 V – 3.6 V
User Assigned Registers for Offset Calibration
Programmable Threshold Interrupt Output
Level Detection for Motion Recognition (Shock, Vibration, Freefall)
Pulse Detection for Single or Double Pulse Recognition
Sensitivity (64 LSB/g @ 2g and @ 8g in 10-Bit Mode)
Selectable Sensitivity (±2g, ±4g, ±8g) for 8-bit Mode
Robust Design, High Shocks Survivability (5,000g)
RoHS Compliant
Environmentally Preferred Product
Low Cost
MMA7455L
MMA7455L: XYZ-AXIS
ACCELEROMETER
±2G/±4G/±8G
Bottom View
14 LEAD
LGA
CASE 1977-01
Top View
CS
Typical Applications
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Cell Phone/PMP/PDA: Image Stability, Text Scroll, Motion Dialing, Tap to
Mute
HDD: Freefall Detection
Laptop PC: Freefall Detection, Anti-Theft
Pedometer
Motion Sensing, Event Recorder
INT1/DRDY
INT2
N/C
N/C
SDO
SDA/SDI/SDO
8
9
10
11
12
13
7
AVDD
GND
IADDR0
N/C
GND
DVDD_IO
6
5
4
3
2
1
14 SCL/SPC
ORDERING INFORMATION
Part Number
MMA7455LT
MMA7455LR1
MMA7455LR2
Temperature Range
–40 to +85°C
–40 to +85°C
–40 to +85°C
Package
LGA-14
LGA-14
LGA-14
Shipping
Tray
7” Tape & Reel
13” Tape & Reel
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, 2008. All rights reserved.
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
