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Foranyapplicationtobeginproperoperation,theappli-

cationmustpower-upproperly.Manycriteriamustbe

takenintoaccounttoensurethis.ThePICmicro™

devicesintegrateseveralfeaturestosimplifythedesign

forthepower-upsequence.Theseintegratedfeatures

alsoreducethetotalsystemcost.

Thisapplicationnotedescribestherequirementsfor

thedevicetoproperlypower-up,commonpitfallsthat

designersencounter,andmethodstoassistinsolving

power-upproblems.AN607Power-upTroubleShootingcapableofgeneratinganinternalresetsignal.Author:MarkPalmerDependingonthedevicefamily,differentpower-upMicrochipTechnologyInc.sequenceswilloccurafterthisPORsignal.Contributions:RichardHull&RandyYachIftheslopeislessthen0.05V/ms,theMCLRpinshouldMicrochipTechnologyInc.beheldlow,byexternalcircuitry,untilavalidoper