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THEDEVELOPMENTOFSINGLECHIPFIRSTTHEDEVELOPMENTTRENDOFSINGLECHIPITCANBESAIDNOWISASINGLECHIPOPINIONSOFTHEPERIODTHEWORLDSMAJORCHIPMANUFACTURINGCOMPANIESHAVEINTRODUCEDTHEIROWNSINGLECHIPFROMTHE81632JUSTTONAMEAFEWEVERYTHINGITISCOMPATIBLEWITHMAINSTREAMC51SERIESOFTHEREARENOTCOMPATIBLEBUTTHEYOWNEACHOTHERINTOEACHOTHERFORSCMAPPLICATIONSWORLDWIDETHROUGHOUTTHEDEVELOPMENTPROCESSOFSINGLECHIPYOUCANINDICATETHEDEVELOPMENTTRENDOFSINGLECHIPGENERALLYARE1LOWPOWERCMOSTECHNOLOGYMCS51SERIESOF8031INTRODUCEDTHEPOWERCONSUMPTIONOF630MWANDNOWWIDESPREADINTHESINGLECHIP100MWORSOWITHTHEGROWINGDEMANDFORLOWPOWERSINGLECHIPANDNOWALLTHEBASICSINGLECHIPMANUFACTURERSAREUSEOFCMOSCOMPLEMENTARYMETALOXIDESEMICONDUCTORPROCESSASTHE80C51ONTHEUSEOFHMOSHIGHDENSITYMETALOXIDESEMICONDUCTORPROCESSANDCHMOSHIGHDENSITYCOMPLEMENTARYMETALOXIDESEMICONDUCTORPROCESSALTHOUGHTHECMOSLOWPOWERCONSUMPTIONBUTBECAUSEOFITSPHYSICALCHARACTERISTICSTODETERMINEITSSPEEDISNOTHIGHENOUGHANDTHENCHMOSWITHHIGHSPEEDANDLOWPOWERCONSUMPTIONCHARACTERISTICSOFTHESEFEATURESITISMORESUITABLEINLOWPOWERCONSUMPTIONASBATTERYPOWEREDAPPLICATIONSTHEREFORETHEPROCESSFORSOMETIMETOCOMEWILLBETHEMAINWAYTODEVELOPSINGLECHIP2OFMICROCHIPNOWAREGENERALLYINCONVENTIONALSINGLECHIPWILLBETHECENTRALPROCESSINGUNITCPURANDOMACCESSDATASTORAGERAMREADONLYPROGRAMMEMORYROMPARALLELANDSERIALCOMMUNICATIONINTERFACESYSTEMINTERRUPTIONTIMINGCIRCUITSINTEGRATEDCIRCUITCLOCKINASINGLECHIPENHANCEDSINGLECHIPINTEGRATIONSUCHASA/DCONVERTERPMWPULSEWIDTHMODULATIONCIRCUITWDTWATCHDOGANDSOMEWILLBESINGLECHIPLCDLCDDRIVERINTEGRATEDCIRCUITSAREINASINGLECHIPTHISUNITINCLUDESSINGLECHIPCIRCUITSONMOREANDMOREPOWERFULFEATURESEVENSINGLECHIPMANUFACTURERSCANALSOBETAILOREDINACCORDANCEWITHTHEREQUIREMENTSOFUSERSTOCREATEASINGLECHIPWITHITSOWNCHIPCHARACTERISTICSINADDITIONTHEPRODUCTISNOWTHEUNIVERSALDEMANDOFSMALLSIZELIGHTWEIGHTWHICHREQUIRESINADDITIONTOPOWERFULSINGLECHIPANDLOWPOWERCONSUMPTIONBUTALSOITSSMALLERSIZEMANYNOWHAVEAVARIETYOFSINGLECHIPPACKAGEWHICHSMDSURFACEMOUNTISGAININGPOPULARITYMAKINGTHESYSTEMCONSTITUTEDBYTHESINGLECHIPMICROMOVINGINTHEDIRECTIONOFDEVELOPMENT3THEMAINSTREAMANDMULTISPECIESCOEXISTENCEALTHOUGHAWIDEVARIETYOFSINGLECHIPUNIQUEBUTSTILLSINGLECHIPMICROCOMPUTER80C51PREVAILINGATTHECORECOMPATIBLEWITHITSSTRUCTUREANDCOMMANDSYSTEMOFPHILIPSPRODUCTSATMELCOMPANYSPRODUCTSANDCHINATAIWANSWINBONDSERIESSINGLEMACHINETHEREFORESINGLECHIPMICROCOMPUTERASTHECOREC8051OCCUPIEDTHEHALFMICROCHIPSPICANDREDUCEDINSTRUCTIONSETRISCHASASTRONGDEVELOPMENTMOMENTUMOFCHINATAIWANHOLTEKSINGLECHIPCOMPANIESINRECENTYEARSINCREASINGPRODUCTIONWITHITSHIGHQUALITYLOWCOSTADVANTAGESTOOCCUPYACERTAINMARKETSHAREMOTOROLAADDITIONTOTHECOMPANYSPRODUCTSSEVERALLARGECOMPANIESINJAPANSEXCLUSIVESINGLECHIPMICROCOMPUTERACERTAINPERIODOFTIMETHISSITUATIONWILLCONTINUETOBEUPHELDTHEREWILLNOTBEASINGLECHIPMONOPOLYDOMINATIONTAKINGTHECOMPLEMENTARYINTERDEPENDENCECOMPLEMENTARITYANDCOMMONDEVELOPMENTSECONDTHETECHNICALDEVELOPMENTOFDIGITALSINGLECHIPTHENUMBEROFSINGLECHIPTECHNOLOGYISREFLECTEDINTHEINTERNALSTRUCTUREPOWERCONSUMPTIONASWELLASTHEEXTERNALVOLTAGELEVELONTHEMANUFACTURINGPROCESSINTHESEAREASMORETYPICALLYDESCRIBESTHENUMBEROFSINGLECHIPLEVELATTHEMOMENTUSERSNEEDMOREANDMORESINGLECHIPBUTGETTINGHIGHERANDHIGHERREQUIREMENTSTHEFOLLOWINGFOURAREASONWHICHTHETECHNOLOGICALPROGRESSTHATTHESITUATIONOFSINGLECHIPMICROCOMPUTER1THEINTERNALSTRUCTUREOFTHEPROGRESSSINGLECHIPINTEGRATEDINHOUSEHASBEENANINCREASINGNUMBEROFPARTSTHESEPARTSINCLUDECOMMONLYUSEDCIRCUITSSUCHASTIMERSCOMPARATORSA/DCONVERTERD/ACONVERTERSSERIALCOMMUNICATIONINTERFACEWATCHDOGCIRCUITLCDCONTROLLERSOMESINGLECHIPCONTROLNETWORKINORDERTOCONSTITUTEORFORMALOCALNETWORKTHEINTERNALLOCALAREANETWORKCONTROLMODULECONTAINSTHECANFOREXAMPLEINFINEONSC505CC515CC167CRC167CS32FM81C90MOTOROLAS68HC08AZSERIESESPECIALLYINTHEC167CS32FMINSINGLECHIPALSOCONTAINSTWOINTERNALCANTHEREFORESUCHSINGLECHIPNETWORKSAREVERYEASYTOPOSEESPECIALLYINTHECONTROLSYSTEMMORECOMPLICATEDTHECONSTITUTEAVERYUSEFULCONTROLNETWORKINORDERTOFACILITATETHEUSEOFVARIABLEFREQUENCYCONTROLOFSINGLECHIPTOFORMTHEMOSTCOSTEFFECTIVEEMBEDDEDCONTROLSYSTEMSSOMESETUPASPECIALSINGLECHIPINTERNALCONTROLFORVARIABLEFREQUENCYPULSEWIDTHMODULATIONCONTROLCIRCUITTHESINGLECHIPMICROCOMPUTERHASFUJITSUSMB89850SERIESOFCOMPANIESMB89860SERIESMOTOROLASMC68HC08MR16MR24ANDSOONINTHESESINGLECHIPTHEPULSEWIDTHMODULATIONCIRCUIT6CHANNELOUTPUTCANPRODUCETHREEPHASEPWMACVOLTAGEANDINTERNALCONTROLWITHDEADZONEFUNCTIONOFPARTICULARNOTEAREITISNOWSOMEHAVEADOPTEDTHESOCALLEDSINGLECHIPTRINUCLEARTRCORESTRUCTURETHISISASYSTEMLEVELCHIPSBUILTONTHESYSTEMONACHIPONTHESTRUCTUREOFTHECONCEPTTHISSINGLECHIPCONSISTSOFTHREECORECOMPONENTSAMICROCONTROLLERANDTHEDSPCOREADATAANDPROGRAMMEMORYISNUCLEARANDTHELASTONEISTHEEXTERNALAPPLICATIONSPECIFICINTEGRATEDCIRCUITASICTHEMOSTIMPORTANTFEATUREOFTHISSINGLECHIPISTHEDSPANDMICROCONTROLLERATTHESAMETIMEDOSOINACHIPALTHOUGHTHESTRUCTUREDEFINITIONDSPISATYPEOFSINGLECHIPBUTITSROLEISMAINLYSEENINTHEHIGHSPEEDCOMPUTINGANDSPECIALTREATMENTASABOVESUCHASFASTFOURIERTRANSFORMITCOMBINESTRADITIONALSINGLECHIPINTEGRATEDSINGLECHIPGREATLYENHANCEDFUNCTIONALITYTHISISTHESINGLECHIPONEOFTHEGREATESTPROGRESSTHISSINGLECHIPMICRO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