Freescale Semiconductor Evaluation Board MPR031/2 for 2- or 3-pad touch sensor controllers DEMOMPR031 DEMOMPR031 数据表

MPR03X

Rev 7, 7/2012

Freescale Semiconductor
Data Sheet: Technical Data

An Energy Efficient Solution by Freescale

© 2008, 2009, 2011, 2012 Freescale Semiconductor, Inc. All rights reserved.

The MPR03X is an Inter-Integrated Circuit Communication (I

2

C) 

driven Capacitive Touch Sensor Controller, optimized to manage two 
electrodes with interrupt functionality, or three electrodes with the 
interrupt disabled. It can accommodate a wide range of 
implementations due to increased sensitivity and a specialized 
feature set.

•

6 µA supply current with two electrodes being monitored with 
32 ms response time and IRQ enabled

•

Compact 2 x 2 x 0.65 mm 8-lead µDFN package

•

Supports up to 3 touch pads

•

Only one external component needed

•

Intelligent touch detection capacity

•

4 µA maximum shutdown current

•

1.71 V to 2.75 V operation

•

Threshold based detection with hysteresis

•

I

2

C interface, with optional IRQ

•

Multiple devices in a system allow for up to 6 electrodes (need 
MPR032 with second I

2

C address)

•

-40°C to +85°C operating temperature range

•

Switch Replacements

•

Touch Pads

•

PC Peripherals

•

MP3 Players

•

Remote Controls

•

Mobile Phones

•

Lighting Controls

MPR031EPR2

-40

C to +85C

1944 (8-Pin 

DFN)

3-pads

0x4A

Tape and Reel

MPR032EPR2

-40

C to +85C

1944 (8-Pin 

DFN)

3-pads

0x4B

Tape and Reel

DFN

1

SCL

2

3

8

7

6

5

4

SDA

V

SS

V

DD

IRQ/ELE2

ELE1

ELE0

REXT

Interface

I²C Serial

VSS

SDA

SCL

ELE0

ELE1

VDD

INT

1

2

VSS

75k

REXT

MPR03X with 2 Electrodes and 2 Pads