单片机英文翻译.docMCUdevelopmentandapplicationAmicrocontroller(orMCU)puter-on-a--sufficiencyandcost-css,incontrasttoageneral-purposemicroprocessor(thekindusedinaPC).putersystemsinusetodayareembeddedinothermachinery,suchastelephones,clocks,appliances,vehicles,,mostembeddedsystemslackkeyboards,screens,disks,printers,orotherrecognizableT/,relaysorvoltages,andreadswitches,,theonlyI/Odevicereadablebyahumanisasinglelight-emittingdiode,-purposeCPUs,microcontrollersdonothaveanaddressbusoradatabus,becausetheyintegratealltheRAMandnon-,thechipcanbeplacedinamuchsmaller,,costoftheembeddedsystemasawhole.(EvenifthecostofaCPUthathasintegratedperipheralsisslightlymorethanthecostofaCPU+externalperipherals,havingfewerchipstypicallyallowsasmellierandcheapercircuitboard,andreducesthelaborrequiredtoassembleandtestthecircuitboard).:centralprocessingunit-rangingfromsmallandsimple4~bitprocessorstosophisticated32-or64-bitprocessorsinput/ssuchasserialports(UARTs)municationsinterfaces1ikeT2C,workforsysteminterconnectperipheralssuchastimersandwatchdogRAMfordatastorageROM,EPROM,EEPROMorFlashmemoryforprogramstorageclockgenerator-oftenanoscillatorforaquartztimingcrystal,ircuitmanyincludeanalog-to-digiLalconverters•
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