MMA8451Q(2010) 데이터 시트보기 (PDF) - Freescale Semiconductor
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MMA8451Q Datasheet PDF : 53 Pages
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Figure 3 shows the device configuration in the 6 different orientation modes. These orientations are defined as the following:
PU = Portrait Up, LR = Landscape Right, PD = Portrait Down, LL = Landscape Left, BACK and FRONT side views. There are
several registers to configure the orientation detection and are described in detail in the register setting section.
Pin 1
LL
Xout @ -1g
Yout @ 0g
Zout @ 0g
Top View
PU
Earth Gravity
LR
Xout @ 0g
Yout @ -1g
Zout @ 0g
PD
Xout @ 1g
Yout @ 0g
Zout @ 0g
Xout @ 0g
Yout @ 1g
Zout @ 0g
Figure 3. Landscape/Portrait Orientation
1.6V - 3.6V
Interface Voltage
Side View
BACK
Xout @ 0g
Yout @ 0g
Zout @ -1g
FRONT
Xout @ 0g
Yout @ 0g
Zout @ 1g
1.95V - 3.6V
VDD
VDDIO
VDDIO
4.7kΩ
4.7kΩ
0.1μF
16 15 14
1 VDDIO
NC 13
2 BYP
GND 12
0.1μF 3 NC
MMA8451Q INT1 11
4 SCL
GND 10
5 GND
INT2 9
67 8
4.7μF
SCL
SDA
INT1
INT2
SA0
Figure 4. Application Diagram
Sensors
Freescale Semiconductor
MMA8451Q
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