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MC3413 3-Axis Accelerometer Preliminary Datasheet
mCube Proprietary. APS-048-0029v1.7 1 / 47
© 2014 mCube Inc. All rights reserved.
GENERAL DESCRIPTION
The MC3413 is a low-noise, integrated
digital output 3-axis accelerometer with a
feature set optimized for cell phones and
consumer product motion sensing.
Applications include user interface control,
gaming motion input, electronic compass tilt
compensation for cell phones, game
controllers, remote controls and portable
media products.
Low noise and low power are inherent in
the monolithic fabrication approach, where
the MEMS accelerometer is integrated in a
single-chip with the electronics integrated
circuit.
In the MC3413 the internal sample rate can
be set from 0.25 to 256 samples / second.
Specific tap or sample acquisition
conditions can trigger an interrupt to a
remote MCU. Alternatively, the device
supports the reading of sample and event
status via polling.
FEATURES
Range, Sampling & Power
±2,4,8,12 or 16g ranges
8, 10 or 14-bit resolution
0.25 - 256 samples/sec
50 - 130 μA typical current
Event Detection
Low-noise architecture minimizes
false triggering
Independent X,Y,Z Tap
Simple System Integration
I2C interface, up to 400 kHz
2 × 2 × 0.92 mm 12-pin package
‒ Pin-compatible to Bosch BMA2xx
Single-chip 3D silicon MEMS
<200µg / √Hz noise
MC3413 3-Axis Accelerometer Preliminary Datasheet
mCube Proprietary. APS-048-0029v1.7 2 / 47
© 2014 mCube Inc. All rights reserved.
TABLE OF CONTENTS
1 Order Information ............................................................................................................. 4
2 Functional Block Diagram ................................................................................................ 5
3 Packaging and Pin Description ........................................................................................ 6
3.1 Package Outline ................................................................................................................... 6
3.2 Package Orientation ............................................................................................................. 7
3.3 Pin Description ..................................................................................................................... 8
3.4 Typical Application Circuits .................................................................................................. 9
3.5 Tape and Reel ................................................................................................................... 11
4 Specifications ................................................................................................................. 13
4.1 Absolute Maximum Ratings ................................................................................................ 13
4.2 Sensor Characteristics ....................................................................................................... 14
4.3 Electrical and Timing Characteristics .................................................................................. 15
4.3.1 Electrical Power and Internal Characteristics ....................................................... 15
4.3.2 I2C Electrical Characteristics ............................................................................... 16
4.3.3 I2C Timing Characteristics ................................................................................... 17
5 General Operation ......................................................................................................... 18
5.1 Sensor Sampling ................................................................................................................ 18
5.2 Offset and Gain Calibration ................................................................................................ 18
5.3 Tap Detection ..................................................................................................................... 18
6 Operational States ......................................................................................................... 19
7 Operational State Flow .................................................................................................. 20
8 Interrupts ........................................................................................................................ 21
8.1 Enabling and Clearing Interrupts ........................................................................................ 21
8.2 ACQ_INT Interrupt ............................................................................................................. 21
9 Sampling ........................................................................................................................ 22
9.1 Continuous Sampling ......................................................................................................... 22
10 I2C Interface .................................................................................................................. 23
10.1 Physical Interface ............................................................................................................... 23
10.2 Timing ................................................................................................................................ 24
10.3 I2C Message Format .......................................................................................................... 24
10.4 Watchdog Timer ................................................................................................................. 25
MC3413 3-Axis Accelerometer Preliminary Datasheet
mCube Proprietary. APS-048-0029v1.7 3 / 47
© 2014 mCube Inc. All rights reserved.
11 Register Interface .......................................................................................................... 26
11.1 Register Summary ............................................................................................................. 27
11.2 SR Status Register ............................................................................................................. 29
11.3 OPSTAT Device Status Register ........................................................................................ 30
11.4 INTEN Interrupt Enable Register ........................................................................................ 31
11.5 MODE Register .................................................................................................................. 32
11.6 SRTFR Sample Rate and Tap Feature Register ................................................................ 33
11.7 TAPEN Tap Control Register ............................................................................................. 34
11.8 TTTRX,TTTRY, TTTRZ X, Y and Z Tap Duration and Threshold Registers ....................... 35
11.9 XOUT_EX, YOUT_EX & ZOUT_EX X, Y, Z-Axis Acceleration Registers ........................... 36
11.10 OUTCFG Output Configuration Register ............................................................................ 37
11.11 X-Axis Offset Registers ...................................................................................................... 38
11.12 Y-Axis Offset Registers ...................................................................................................... 39
11.13 Z-Axis Offset Registers ...................................................................................................... 40
11.14 X-Axis Gain Registers ........................................................................................................ 41
11.15 Y-Axis Gain Registers ........................................................................................................ 42
11.16 Z-Axis Gain Registers ........................................................................................................ 43
11.17 PCODE Product Code........................................................................................................ 44
12 Index of Tables .............................................................................................................. 45
13 Revision History ............................................................................................................. 46
14 Legal .............................................................................................................................. 47
MC3413 3-Axis Accelerometer Preliminary Datasheet
mCube Proprietary. APS-048-0029v1.7 4 / 47
© 2014 mCube Inc. All rights reserved.
1 ORDER INFORMATION
Table 1. Order Information
Part Number
Resolution
Order Number
Package
Shipping
MC3413
8 to 14-bit
MC3413
VLGA-12
Tape & Reel, 5Ku
MC3413 3-Axis Accelerometer Preliminary Datasheet
mCube Proprietary. APS-048-0029v1.7 5 / 47
© 2014 mCube Inc. All rights reserved.
2 FUNCTIONAL BLOCK DIAGRAM
Event
Detection
A/D Converter
(Sigma Delta)
C to V
VPP
VDD/VDDIO
GND
Regulators
and Bias
Oscillator/
Clock
Generator
Mode Logic
I2C Slave
Interface
Interrupt
X
Y
Z
OTP
Memory
Registers
(64 x 8)
SCL
SDA
INTN
Offset/
Gain
Adjust
X,Y,Z
data paths
Sensors
Range &
Scale
Figure 1. Block Diagram
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