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Freescale Semiconductor
Data Sheet: Technical Data
An Energy Efficient Solution by Freescale
Xtrinsic MMA8451Q 3-Axis,
14-bit/8-bit Digital Accelerometer
The MMA8451Q is a smart, low-power, three-axis, capacitive, micromachined
accelerometer with 14 bits of resolution. This accelerometer is packed with
embedded functions with flexible user programmable options, configurable to two
interrupt pins. Embedded interrupt functions allow for overall power savings
relieving the host processor from continuously polling data. There is access to both
low-pass filtered data as well as high-pass filtered data, which minimizes the data
analysis required for jolt detection and faster transitions. The device can be
configured to generate inertial wakeup interrupt signals from any combination of
the configurable embedded functions allowing the MMA8451Q to monitor events
and remain in a low-power mode during periods of inactivity. The MMA8451Q is
available in a 3 mm by 3 mm by 1 mm QFN package.
Features
Document Number: MMA8451Q
Rev. 8.1, 10/2013
MMA8451Q
Top and Bottom View
?
?
?
?
?
?
?
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1.95V to 3.6V supply voltage
1.6V to 3.6V interface voltage
±2g/±4g/±8g dynamically selectable full-scale
Output Data Rates (ODR) from 1.56 Hz to 800 Hz
99 μ g/ √ Hz noise
14-bit and 8-bit digital output
I 2 C digital output interface (operates to 2.25 MHz with 4.7 k Ω pullup)
Two programmable interrupt pins for seven interrupt sources
16 PIN QFN
3 mm by 3 mm by 1 mm
CASE 2077-02
Top View
?
Three embedded channels of motion detection
16
15
14
?
Freefall or Motion Detection: 1 channel
VDDIO
1
13
NC
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Pulse Detection: 1 channel
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?
?
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Jolt Detection: 1 channel
Orientation (Portrait/Landscape) detection with programmable hysteresis
Automatic ODR change for Auto-WAKE and return to SLEEP
32-sample FIFO
BYP
NC
SCL
2
3
4
12
11
10
GND
INT1
GND
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High-Pass Filter Data available per sample and through the FIFO
?
?
?
Self-Test
RoHS compliant
Current Consumption: 6 μ A to 165 μ A
GND
5
6
7
8
9
INT2
Typical Applications
? E-Compass applications
? Static orientation detection (Portrait/Landscape, Up/Down, Left/Right, Back/
Pin Connections
Front position identification)
? Notebook, e-reader, and Laptop Tumble and Freefall Detection
? Real-time orientation detection (virtual reality and gaming 3D user position feedback)
? Real-time activity analysis (pedometer step counting, freefall drop detection for HDD, dead-reckoning GPS backup)
? Motion detection for portable product power saving (Auto-SLEEP and Auto-WAKE for cell phone, PDA, GPS, gaming)
? Shock and vibration monitoring (mechatronic compensation, shipping and warranty usage logging)
?
User interface (menu scrolling by orientation change, tap detection for button replacement)
ORDERING INFORMATION
Part Number
MMA8451QT
MMA8451QR1
Temperature Range
-40°C to +85°C
-40°C to +85°C
Package Description
QFN-16
QFN-16
Shipping
Tray
Tape and Reel
? 2010-2013 Freescale Semiconductor, Inc. All rights reserved.
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相关代理商/技术参数
MMA8452Q 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:3-Axis, 12-bit/8-bit Digital Accelerometer
MMA8452QR1 功能描述:加速计 - 板上安装 LOW G 3-AXIS 12BT EX VLT RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8452QT 功能描述:加速计 - 板上安装 LOW G 3-AXIS 12BT EX VLT RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8453Q 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Xtrinsic MMA8453Q 3-Axis, 10-bit/8-bit Digital Accelerometer
MMA8453QR1 功能描述:加速计 - 板上安装 LOW G 3-AXIS DGTL ACCEL RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8453QT 功能描述:加速计 - 板上安装 LOW G 3-AXIS DGTL ACCEL RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C
MMA8491Q 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Xtrinsic MMA8491Q 3-Axis Multifunction Digital Accelerometer
MMA8491QR1 功能描述:加速计 - 板上安装 3-Axis Low Voltage Discrete Tilt Sensor RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C