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MMA8451QR1 データシートの表示(PDF) - Freescale Semiconductor
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MMA8451QR1
3-Axis, 14-bit/8-bit Digital Accelerometer
Freescale Semiconductor
MMA8451QR1 Datasheet PDF : 52 Pages
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Block Diagram and Pin Description
VDD
VDDIO
VSS
X-axis
Transducer
Y-axis
Transducer
Z-axis
Transducer
Internal
OSC
Clock
GEN
C to V
Converter
14-bit
ADC
INT1
INT2
Embedded
DSP
I
2
C
Functions
SDA
SCL
32 Data Point
Configurable
FIFO Buffer
with Watermark
Freefall
and Motion
Detection
Transient
Detection
(i.e., fast motion,
jolt)
Enhanced
Orientation with
Hysteresis
and Z-lockout
Shake Detection
through
Motion
Threshold
Single, Double
& Directional Tap
Detection
Auto-WAKE/Auto-SLEEP Configurable with debounce counter and multiple motion interrupts for control
MODE Options
Low Power
Low Noise + Power
High Resolution
Normal
ACTIVE Mode
WAKE
Auto-WAKE/SLEEP
Figure 1. Block Diagram
ACTIVE Mode
SLEEP
MODE Options
Low Power
Low Noise + Power
High Resolution
Normal
Z
Earth Gravity
X
1
13
1
Y
9
5
(TOP VIEW)
DIRECTION OF THE
DETECTABLE ACCELERATIONS
(BOTTOM VIEW)
Figure 2. Direction of the Detectable Accelerations
Sensors
Freescale Semiconductor, Inc.
MMA8451Q
3
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