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Document Number: MMA8452Q
Rev. 10, 04/2016
NXP Semiconductors
Data sheet: Technical data
© 2016 NXP B.V.
MMA8452Q, 3-axis, 12-bit/8-bit
digital accelerometer
The MMA8452Q is a smart, low-power, three-axis, capacitive, micromachined
accelerometer with 12 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.
The MMA8452Q has user selectable full scales of ±2 g/±4 g/±8 g with high-pass
filtered data as well as non-filtered data available real-time. The device can be
configured to generate inertial wakeup interrupt signals from any combination of
the configurable embedded functions allowing the MMA8452Q to monitor events
and remain in a low-power mode during periods of inactivity. The MMA8452Q is
available in a 16-pin QFN, 3 mm x 3 mm x 1 mm package.
Features
1.95 V to 3.6 V supply voltage
1.6 V to 3.6 V interface voltage
•±2 g/±4 g/±8 g dynamically selectable full-scale
Output data rates (ODR) from 1.56 Hz to 800 Hz
99 μg/Hz noise
12-bit and 8-bit digital output
•I
2
C
digital output interface
Two programmable interrupt pins for six interrupt sources
Three embedded channels of motion detection
Freefall or motion detection: one channel
Pulse detection: one channel
Transient detection: one channel
Orientation (portrait/landscape) detection with set hysteresis
Automatic ODR change for auto-wake and return to sleep
High-pass filter data available real-time
•Self-test
Current consumption: 6 μA to 165 μA
Typical applications
E-compass applications
Static orientation detection (portrait/landscape, up/down, left/right, back/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, pulse detection for button replacement)
Ordering information
Part number Temperature range Package description Shipping
MMA8452QT –40°C to +85°C QFN-16 Tray
MMA8452QR1 –40°C to +85°C QFN-16 Tape and Reel
MMA8452Q
16-pin QFN
3 mm x 3 mm x 1 mm
Top and bottom view
Top view
Pin connections
1
2
3
4
59
10
11
12
13
141516
876
NC
VDD
NC
VDDIO
BYP
DNC
SCL
GND
NC
GND
INT1
GND
INT2
SA0
NC
SDA
Verzeichnis

MMA8452QR1 Datenblatt-PDF

MMA8452QR1 Programmierhandbuch
Avnet
54 Seiten, 487 KB

MMA8452 Datenblatt-PDF

MMA8452QR1
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