Datasheet

Sensors
NXP Semiconductors 3
MMA8452Q
1 Block Diagram and Pin Description
Figure 1. Block diagram
Figure 2. Direction of the detectable accelerations
12-bit
SDA
SCL
I
2
C
Embedded
DSP
Functions
C to V
Internal
OSC
Clock
GEN
ADC
Converter
VDDIO
VSS
X-axis
Transducer
Y-axis
Transducer
Z-axis
Transducer
Freefall
and Motion
Detection
Transient
Detection
(i.e., fast-motion,
transient)
Orientation with
Set Hysteresis
and Z-lockout
Shake Detection
through
Motion
Threshold
Auto-wake/auto-sleep configurable with debounce counter and multiple motion interrupts for control
Auto-wake/sleep
Active mode
sleep
VDD
INT1
INT2
Active mode
wake
Single, Double
and Directional
Tap Detection
MODE Options
Low Power
Low Noise + Low Power
High Resolution
Normal
MODE Options
Low Power
Low Noise + Low Power
High Resolution
Normal
1
DIRECTION OF THE
DETECTABLE ACCELERATIONS
(BOTTOM VIEW)
5
9
13
X
Y
Z
1
(TOP VIEW)
Earth Gravity