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MMA8491Q Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc

Part No. MMA8491Q
Description  Xtrinsic MMA8491Q 3-Axis Multifunction Digital Accelerometer
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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MMA8491Q Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc

 
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Freescale Semiconductor
Document Number: MMA8491Q
Data Sheet: Technical Data
Rev 2.0, 11/2012
© 2012 Freescale Semiconductor, Inc. All rights reserved.
Xtrinsic MMA8491Q 3-Axis
Multifunction Digital Accelerometer
The MMA8491Q is a low voltage, 3-axis low-g accelerometer housed in a
3 mm x 3 mm QFN package. The device can accommodate two
accelerometer configurations, acting as either a 45° tilt sensor or a digital
output accelerometer with I2C bus.
As a 45° Tilt Sensor, the MMA8491Q device offers extreme ease of
implementation by using a single line output per axis.
As a digital output accelerometer, the 14-bit ±8g accelerometer data can
be read from the device with a 1 mg/LSB sensitivity.
The extreme low power capabilities of the MMA8491Q will reduce the low data
rate current consumption to less than 400 nA per Hz.
Features
Extreme low power, 400 nA per Hz
Ultra-fast data output time, ~700
μs
1.95V to 3.6V VDD supply range
3 mm x 3 mm, 0.65 mm pitch with visual solder joint inspection
±8g full-scale range
14-bit digital output, 1 mg/LSB sensitivity
Output Data Rate (ODR), implementation based from < 1 Hz to 800 Hz
•I2C digital interface
3-axis, 45° tilt outputs
Typical Applications
Smart grid: tamper detect
•Anti-theft
White goods tilt
Remote controls
Related Documentation
The MMA8491Q device features and operations are described in a variety of
reference manuals, user guides, and application notes. To find the most-
current versions of these documents:
1.
Go to the Freescale homepage at: http://www.freescale.com/
2.
In the Keyword search box at the top of the page, enter the device number MMA8491Q. In the Refine Your Result pane
on the left, click on the Documentation link.
ORDERING INFORMATION
Part Number
Temperature Range
Package
Shipping
MMA8491QT
-40 to +85°C
QFN 12
Tray
MMA8491QR1
-40 to +85°C
QFN 12
1000 pc / Tape & Reel
Pin Connections
MMA8491Q
Bottom View
12-Lead Industrial QFN
3 mm x 3 mm x 1.05 mm
0.65 mm Pitch
1
2
3
4
10
9
8
7
Xout
Yout
Zout
Gnd
Byp
VDD
SDA
EN
56
12
11
SCL
Gnd
NC
NC


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