Microchip Technology AC164127-3 Data Sheet

Microchip Human Interface Solutions

Projected Touch Firmware

Application Code

such as 

Comms, etc.

ADC

I

2

C™, 

UART

CTMU or CVD Acquisition

I/O for 

Column Drive

ADC Channels

for Row Sensing

x01 . . .

x11  x12

 

y01

..

.

y08
y09

 

Diamond Pattern

(alternative pattern types also supported)

Microchip’s projected capacitive technology is the first in 

a series of patent-pending releases supporting projected 

capacitive touch screen solutions across the portfolio of 

8-, 16- and 32-bit PIC MCUs. Microchip makes it easy for 

designers to integrate Projected Capacitive interfaces with 

flexible, royalty-free source code and software support 

tools, to enable fast time to market.

   

■

One or two thin layers of glass patterned with 

conductive coating, typically Indium Tin Oxide (ITO)

   

■

Screen is confi gured as rows and columns

   

■

Point of contact identifi ed by change in capacitance 

of row and column cells

   

■

Multi-touch support 

   •   

 Enables gesture navigation 

for intelligent control

   

■

High fl exibility

   •     

Royalty-free source code 

license

•     Integrate touch sensing with application code on a 

single MCU

   

■

Low power
•    Also available on XLP devices

   

■

Low cost solution

   

■

Embedded systems 

   

■

Appliances

   

■

Automotive, GPS and navigation devices

   

■

G

aming, consumer electronics, mobile devices

   

■

Security control panels

   

■

Remote controls

   

■

Thermostats