Datasheet

8
8-bit PIC® Microcontroller Solutions
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.
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
ü
1.8–5.5 10-bit ADC × 17 channels, CCPWM, UART, I
2
C™, SPI
PIC12LF1552 8 2
ü
1.8–3.6 10-bit ADC × 5 channels I
2
C, SPI
Software CVD available on all PIC MCUs with ADC
www.microchip.com/mtouch