51单片机 毕业论文外文翻译

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1、51单片机论文英语文翻译英文原文DescriptionTheAT89C51isalow-powerhigh-performanceCMOS8-bitmicrocomputerwith4KbytesofFlashProgrammableandErasableReadOnlyMemoryPEROMand128bytesRAMThedeviceismanufacturedusingAtmelshighdensitynonvolatilememorytechnologyandiscompatiblewiththeindustrystandardMCS

2、-51instructionsetandpinoutThechipcombinesaversatile8-bitCPUwithFlashonamonolithicchiptheAtmelAT89C51isapowerfulmicrocomputerwhichprovidesahighlyflexibleandcosteffectivesolutiontomanyembeddedcontrolapplicationsFeaturesCompatiblewithMCS-51Products4KBytesofIn-SystemReprogramma

3、bleFlashMemoryEndurance1000WriteEraseCyclesFullyStaticOperation0Hzto24MHzThree-LevelProgramMemoryLock128x8-BitInternalRAM32ProgrammableIOLinesTwo16-BitTimerCountersSixInterruptSourcesProgrammableSerialChannelLowPowerIdleandPowerDownModesTheAT89C51providesthefollowingstandar

4、dfeatures4KbytesofFlash128bytesofRAM32IOlinestwo16-bittimercountersafivevectortwo-levelinterruptarchitectureafullduplexserialporton-chiposcillatorandclockcircuitryInadditiontheAT89C51isdesignedwithstaticlogicforoperationdowntozerofrequencyandsupportstwosoftwareselectablepow

5、ersavingmodesTheIdleModestopstheCPUwhileallowingtheRAMtimercountersserialportandinterruptsystemtocontinuefunctioningThePowerDownModesavestheRAMcontentsbutfreezestheoscillatordisablingallotherchipfunctionsuntilthenexthardwareresetBlockDiagramPinDescriptionVCCSupplyvoltageGND

6、GroundPort0Port0isan8-bitopendrainbidirectionalIOportAsanoutputporteachpincansinkeightTTLinputsWhenisarewrittentoport0pinsthepinscanbeusedashighimpedanceinputsPort0mayalsobeconfiguredtobethemultiplexedloworderaddressdatabusduringaccessestoexternalprogramanddatamemoryInthism

7、odeP0hasinternalpullupsPort0alsoreceivesthecodebytesduringFlashprogrammingandoutputsthecodebytesduringprogramverificationExternalpullupsarerequiredduringprogramverificationPort1Port1isan8-bitbidirectionalIOportwithinternalpullupsThePort1outputbufferscansinksourcefourTTLinpu

8、tsWhen1sarewrittentoPort1pinstheyarepulledhighbytheinternalpullupsandcanbeusedasin