Техническая Спецификация для Microchip Technology AC164127-3

Microchip Human Interface Solutions

Microchip offers a broad portfolio of advanced touch 

solutions for projected capacitive and resistive touch 

screen applications with the following advantages:

   

■

High Flexibility: Royalty free source code model, 

increased design fl exibility with options to integrate 

touch sensing with application code on a single 

MCU, low cost, low power solutions to reduce total 

system cost.

   

■

Sophisticated: Advanced touch screen solutions use 

sophisticated proprietary touch screen decoding 

algorithms to send your application fully processed 

and reliable touch coordinates.

   

■

Easy Integration: Designers can add touch screen 

technology to their application without extensive 

development time, risk or cost.

Microchip presents both projected capacitive and resistive 

touch solutions to allow designers to choose the best fi t for 

their touch screen design.

   

■

Projected capacitive technology provides high 

durability, good optics and multi-touch capability 

which enable gestures.

   

■

Resistive touch is a good choice for a low cost, 

easy to integrate solution that accepts fi nger, 

stylus or glove input.

Cost for screen < 6"

Lowest

Low

Cost for screen > 10"

Lowest

High

Optics

75%

90%

Screen Life

Good

Better

Ease of Integration

Easy

Moderate

Multi-Touch

Limited

Yes

Touch Object

Finger, Stylus/

Glove

Finger

   

■

Frees host from burden of touch data processing

   

■

Enables supply chain optimization via universal sensor 

support
•    Turnkey touch solution
•    Built-in decoding and advanced fi ltering—

no touch code to write

•    Power-saving sleep and external wake up modes
•    Universal 4, 5 and 8 wire sensor support
•    SPI, I

2

C™, UART or USB interfaces

•    4 × 4 QFN package
•    Free drivers for most major platforms

   

■

Two conductive coated polyester layers separated by a 

spacer layer

   

■

When touched, top (fl ex) layer moves past spacer layer 

and contacts bottom (stable) layer

   

■

Point of contact creates voltage divider in the X and Y 

directions

   

■

UART output (AR1011)

   

■

SPI or I

2

C output (AR1021)

   

■

 Low cost with advanced 

touch functionality

   

■

 Communication support for 

I

2

C/SPI/UART

   

■

Built in decoding and advanced fi ltering

   

■

 Auto detect USB or 

UART Communication 

(AR1100 Chip)

   

■

 Auto detect USB or 

RS-232 Communication 

(AR1100 Board)

   

■

 Low cost, high performance USB resistive

   

■

USB and advanced 9 and 25 point calibration

   

■

USB mouse or single touch win 7 digitizer

   

■

Field fl ash updatable (UART and USB)

   

■

Chip and board product for fast integration