Freescale Semiconductor Evaluation Kit for MPR03X Proximity Touch Controller KITMPR03XEVM KITMPR03XEVM Guida Informativa

 

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please visit www.freescale.com/proximity.

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© Freescale Semiconductor, Inc. 2009

Document Number:  MPR03xFS

REV 2

•  1.71V to 2.75V operation
•  8 μA supply current with two electrodes

being monitored with 64 ms response time 
and IRQ enabled

•  4 μA maximum shutdown current
•  Two electrodes plus IRQ
•  Three electrodes and no IRQ
•  Continuous independent auto-calibration for

each electrode input

•  Separate touch and release trip thresholds

for each electrode, providing hysteresis and 
electrode independence

•  I

2

C interface, with optional IRQ output to 

advise electrode status changes

•  2 x 2 x 0.65 mm 8-lead uDFN package
•  -40°C to +85°C operating temperature range

•  Elimination of mechanical buttons
•  Enhances reliability by eliminating

mechanical wear and tear

•  Electrode multiplexing
•  User interface controllers that manage

multiple configurations

•  Gives greater flexibility to product designers
•  Reduces overall system cost

Freescale is a leading provider of pressure, 
inertial and proximity sensors and has 
offered MEMS-based sensors for more 
than 25 years. The sensor ICs complement
Freescale’s broad portfolio of ZigBee

®

 

technology, microcontrollers, microprocessors, 
digital signal processors, analog ICs and 
development tools to offer system solutions  
to customers.

Part Number

Description

KITMPR031EVM 

Evaluation board to demonstrate key proximity sensor features

DEMOMPR031EVM

Small, self-contained board to demonstrate key proximity sensor features

Document Number

Title

Description

MPR031/2 

MPR031/2 Data Sheet

This data sheet presents the specifications for these products

Document Number

Title

Description

AN3747  

Pad Layout Application Note

Explains design for conductive pads

AN3583

Using Low Power Mode on 

the MPR083 and MPR084

Describes how to dynamically run with low power modes  

AN3579

Enabling an MCU for Touch 

Sensing Application Note

Describes how to enable an MCU for touch sensing with a 

properly designed layout and a simple software module

AN3516 

E-Field Keyboard Designs 

Application Note

This application note provides the fundamentals for 

designing keyboards with electric field (E-Field) devices

Part Number

Bus

Sounder

Touch Pad Array

Main Attributes

MPR031 

I

2

C with IRQ 

Yes

Three pads if IRQ is  

not being used

Controls two electrodes with IRQ

Extremely small package

MPR032

I

2

C with IRQ 

Yes

Three pads if IRQ is  

not being used

Ability to be the second address on the I

2

C bus

Extremely small package