Datasheet

Sensors
NXP Semiconductors 15
MMA8452Q
Figure 7. Landscape/portrait orientation
Figure 8. Illustration of landscape to portrait transition (A) and portrait to landscape transition (B)
Figure 9 illustrates the Z-angle lockout region. When lifting the device upright from the flat position it will be active for orientation
detection as low as 29° from flat.
Figure 9. Illustration of Z-tilt angle lockout transition
Top View
PU
Earth Gravity
Pin 1
Xout @ 0 g
Yout @ –1 g
Zout @ 0 g
Xout @ 1 g
Yout @ 0 g
Zout @ 0 g
Xout @ 0 g
Yout @ 1 g
Zout @ 0 g
Xout @ –1 g
Yout @ 0 g
Zout @ 0 g
LL
PD
LR
Side View
FRONT
Xout @ 0 g
Yout @ 0 g
Zout @ 1 g
BACK
Xout @ 0 g
Yout @ 0 g
Zout @ –1 g
Portrait
Landscape to portrait
90°
Trip angle = 60°
0° Landscape
Portrait
Portrait to landscape
90°
Trip angle = 30°
0° Landscape
(A) (B)
Upright
NORMAL
90°
Z-LOCK = 29°
0° Flat
DETECTION
REGION
LOCKOUT
REGION