MC3433 3-Axis Accelerometer

Preliminary Datasheet

mCube Proprietary.

APS-048-0025v1.7

2 / 45

© 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 ................................................................................................ 19

6

Operational States ......................................................................................................... 20

7

Operational State Flow .................................................................................................. 21

8

Interrupts........................................................................................................................ 22

8.1

Enabling and Clearing Interrupts ........................................................................................ 22

8.2

ACQ_INT Interrupt ............................................................................................................. 22

9

Sampling........................................................................................................................ 23

9.1

Continuous Sampling ......................................................................................................... 23

10

I2C Interface .................................................................................................................. 24

10.1

Physical Interface............................................................................................................... 24

10.2

Timing ................................................................................................................................ 24

10.3

I2C Message Format.......................................................................................................... 25

10.4

Watchdog Timer................................................................................................................. 25

11

Register Interface .......................................................................................................... 27

11.1

Register Summary ............................................................................................................. 28