Transcription of LM555 Timer datasheet (Rev. D) - Texas Instruments
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LM555 Timer datasheet (Rev. D) - Texas Instruments
ProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityLM555 SNAS548D FEBRUARY2000 REVISEDJANUARY2015LM555 Timer1 Features3 DescriptionThe LM555is a highlystabledevicefor generating1 DirectReplacementfor SE555/NE555accuratetimedelaysor TimingfromMicrosecondsthroughHourstermin alsare providedfor triggeringor resettingif Operatesin BothAstableand the time delaymodeof operation,the timeis preciselycontrolledby one externalresistorand a stableoperationas an oscillator,the OutputCan Sourceor Sink200 mAfree runningfrequencyand dutycycleare accurately Outputand SupplyTTL circuitmaybe triggeredand reseton Cfallingwaveforms,and the outputcircuitcan source NormallyOn and NormallyOff Outputor sink up to 200 mA or driveTTL circuits. Availablein 8-pinVSSOPP ackageDeviceInformation(1)2 ApplicationsPARTNUMBERPACKAGEBODYSIZE(NO M) PrecisionTimingSOIC(8) PulseGenerationLM555 PDIP(8) (8) SequentialTiming TimeDelayGeneration(1) For all availablepackages,see the orderableaddendumatthe end of the datasheet .
Trigger Current 0.5 0.9 μA Reset Voltage 0.4 0.5 1 V Reset Current 0.1 0.4 mA Threshold Current (5) 0.1 0.25 μA Control Voltage Level VCC = 15 V 9 10 11 V VCC = 5 V 2.6 3.33 4 Pin 7 Leakage Output High 1 100 nA Pin 7 Sat (6) Output Low VCC = 15 V, I7 = 15 mA 180 mV Output Low VCC = 4.5 V, I7 = 4.5 mA 80 200 mV Output Voltage Drop (Low) VCC = 15 V
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