TSHARC-C2_Chip_App_Guide3

ThismanualisfortheMicrochipC2touchscreenmicro-controller.TheTSHARCtouchscreencontrollersand

softwaredescribedwithinthisdocumentaretobeusedwithsurfacecapacitivetouchscreenproducts

manufacturedbyavarietyoftouchscreenmanufacturerswithorwithoutanelectricalbackshield.Touchscreens

betweenmanufacturersvarywithregardstolighttransmission,sensitivity,capacitanceandotherelectrical

characteristics.Becausetouchscreenqualityandelectricalcharacteristicsmayvarybetweentouchscreen

technologiesandmanufacturerstheactual,overallperformancemayvarybetweentouchscreenoverlay

manufacturers’products.

Includedwithinthismanualaretheschematicsanddetailedprintedcircuitboardartwork.ThedesignfortheC2

implementsspecialprecautionswithinthecircuitrylayout.MicrochipTechnologyInc.hastestedthisfinaldesign.

Anymodificationsoralterationsmadetothisdesignwillaffecttheperformanceofyourcontroller.Microchipdoes

notrecommendanymodificationsordeviationsfromtheTSHARCcontrollerdesignshown.

Agreatdealofattentionhasbeenpaidtoeliminatepotentialproblemswithvarioustouchscreenmanufacturers.

Wehaveidentifiedsubstantialspecificationvariancewithineachmanufacturerandbetweenmanufacturerstouch

screens.Whilemostofthemanufactureswetesteddidfallwithinafunctionalspecification,itisimportantto

requestelectricalandmechanicalspecificationsfromyourtouchscreenoverlaymanufacturertoinsureuniform

qualityandperformance.

H:\PigData\MasterBinders\03_Products\TSHARC_Chips\TSHARC_C0_Chip\TSHARC_C0_ApplicationManual\TSHARC-C2_Chip_App_Guide3.3B090827.docTSHARC-C2SurfaceCapacitiveTouchScreenMicrocontrollerApplicationGuideVer.3.35vDC28pinSOIC12