MCP3909的和PIC18F85J90单相电表参考设计

Thischaptercontainsgeneralinformationthatwillbeusefultoknowbeforeusingthe

MCP3909/PIC18F85J90SinglePhaseEnergyMeterReferenceDesign.Items

discussedinthischapterinclude:

•DocumentLayout

•ConventionsUsedinthisGuide

•RecommendedReading

•TheMicrochipWebSite

•CustomerSupport

•DocumentRevisionHistoryMCP3909andPIC18F85J90SinglePhaseEnergyMeterReferenceDesign2009MicrochipTechnologyInc.DS51884ANotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.Therearedishonestandpossiblyillegalmethodsusedtobreachthecodeprotectionfeature.Allofthesemethods,toourknowledge,