膃英文原文螂Description芇Theat89s52isalow-power,high-performanceCMOS8-puterwith4KbytesofFlashProgrammableandErasableReadOnlyMemory(PEROM)’patiblewiththeindustrystandardMCS-51™-hip,:patiblewithMCS-51™Products薀•4KBytesofIn-SystemReprogrammableFlashMemory莇•Endurance:1,000Write/EraseCycles羆•FullyStaticOperation:0Hzto24MHz莃•Three-LevelProgramMemoryLock荿•128x8-BitInternalRAM蒇•32ProgrammableI/OLines莇•Two16-BitTimer/Counters袁•SixInterruptSources莂•ProgrammableSerialChannel薆•LowPowerIdleandPowerDownModes蒄薃膁Theat89s52providesthefollowingstandardfeatures:4KbytesofFlash,128bytesofRAM,32I/Olines,two16-bittimer/counters,afivevectortwo-levelinterruptarchitecture,afullduplexserialport,on-,,timer/counters,:-bitopendrainbidirectionalI/,.螃Port0alsoreceivesthecodebytesduringFlashprogramming,-bitbidirectionalI/.Asinputs,Port1pinsthatareexternallybeingpulledlowwillsourcecurrent(IIL)becauseofthein
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