參數(shù)資料
型號(hào): MMA7450L
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: 【2g/【4g/【8g Three Axis Low-g Digital Output Accelerometer
中文描述: 【2克/【4克/【八克三三軸低g加速度計(jì)的數(shù)字輸出
文件頁數(shù): 1/22頁
文件大?。?/td> 389K
代理商: MMA7450L
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
The MMA7450L 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 (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 (I
2
C/SPI) - 10-Bit at 8g Mode
3mm x 5mm x 0.8mm LGA-14 Package
Low Current Consumption: 400
μ
A
Sleep Mode: 5
μ
A
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
1
2
3
4
5
6
7
8
9
1
1
1
1
1
AVdd
GND
DVdd_IO
S
C
INT1/DRDY
INT2
N/C
SDO
SDA/SDI/SDO
N/C
N/C
N/C
GND
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