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EETE JULAUG 2013

PIC Microcontrollers with mTouch™ Technology Touch Sensing Touch sensing has become an alternative to traditional push-buttons and switches providing: ■ Lower cost of manufacturing and assembly ■ Elegant and stylish designs ■ Increased reliability; with fewer moving parts ■ Proximity-sensitive human interfaces Microchip’s mTouch Sensing Solutions allow designers to integrate touch sensing with application code in a single microcontroller, reducing total system cost. Microchip offers a broad portfolio of low power, low cost and flexible solutions for keys/sliders and touch screen controllers. Get to market faster using our easy GUI-based tools, free source code and low-cost development tools. Keys, Sliders, Wheels and Proximity Detection ■ Industry’s lowest power touch sense solutions • Capacitive sensing in less than 5 μA • Proximity sensing down to less than 1 μA ■ No external component ■ Works through plastic, glass and metal surfaces ■ Water-proof designs for all weather conditions ■ High noise robustness ■ Integrated peripherals such as USB, segmented and graphical LCD modules for true human interface systemon-a-chip ■ Free software library simplifi es implementation and source code puts you in control Capacitive Voltage Divider (CVD) CVD is a charge/voltage based technique to measure relative capacitance on a pin using only the ADC. ■ Software implementation ■ 8, 16, and 32-bit support ■ Proximity support ■ Low temperature dependence ■ Low VDD Dependence ■ Minimal hardware requirements ■ Low-frequence noise rejection ■ Metal over cap compatible Hardware CVD Hardware CVD has been implemented on some of our new devices providing automated capacitive touch sampling, thereby reducing code size and decreasing CPU usage. 8 8-bit PIC® Microcontroller Solutions Development Tools Enhanced mTouch Technology Capacitive Evaluation Kit (DM183026-2) ■ Features PIC16F, PIC18F, PIC24F and PIC32F ■ Includes 8 buttons, matrix and sliders daughter boards ■ GUI for easy confi guration and real time data monitoring mTouch Projected Capacitive Development Kit (DM160211) ■ PIC16F707 controller board with fully functional fi rmware ■ Sensor board with 3.5" projected capacitive 12 × 9 touch screen ■ Royalty-free source code supports sensors with up to 32 channels Metal Over Cap Accessory Kit (AC183026) ■ For use with the DM183026-2 ■ 1 daughter board featuring stainless steel cover ■ 1 daughter board featuring a plastic cover Featured HCVD Product Families Device Family Pins Flash (KB) HCVD Voltage (V) Additional Features PIC16(L)F1513 28 2–4  1.8–5.5 10-bit ADC × 17 channels, CCPWM, UART, I2C™, SPI PIC12LF1552 8 2  1.8–3.6 10-bit ADC × 5 channels I2C, SPI Software CVD available on all PIC MCUs with ADC www.microchip.com/mtouch


EETE JULAUG 2013
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