NE555-英文原版技术手册

12348765GNDTRIGOUTRESETVCCDISCHTHRESCONT3212019910111213456781817161514NCDISCHNCTHRESNCNCTRIGNCOUTNCNCGNDNCCONTNCVCCNCNCRESETNCNC–NointernalconnectionNA555...DORPPACKAGENE555...D,P,PS,ORPWPACKAGESA555...DORPPACKAGESE555...D,JG,ORPPACKAGE(TOPVIEW)SE555...FKPACKAGE(TOPVIEW)NA555,NE555,SA555,SE555–SEPTEMBER1973–REVISEDJUNE2010PRECISIONTIMERSCheckforSamples:NA555,NE555,SA555,SE5551FEATURES•TimingFromMicrosecondstoHours•AdjustableDutyCycle•AstableorMonostableOperation•TTL-CompatibleOutputCanSinkorSourceupto200mADESCRIPTION/ORDERINGINFORMATIONThesedevicesareprecisiontimingcircuitscapableofproducingaccuratetimedelaysoroscillation.Inthetime-delayormonostablemodeofoperation,thetimedintervaliscontrolledbyasingleexternalresistorandcapacitornetwork.Intheastablemodeofoperation,thefrequencyanddutycyclecanbecontrolledindependentlywithtwoexternalresistorsandasingleexternalcapacitor.Thethresholdandtriggerlevelsnormallyaretwo-thirdsandone-third,respectively,ofVCC.Theselevelscanbealteredbyuseofthecontrol-voltageterminal.Whenthetriggerinputfallsbelowthetriggerlevel,theflip-flopisset,andtheoutputgoeshigh.Ifthetriggerinputisabovethetriggerlevelandthethresholdinputisabovethethresholdlevel,theflip-flopisresetandtheoutputislow.Thereset(RESET)inputcanoverrideallotherinputsandcanbeusedtoinitiateanewtimingcycle.WhenRESETgoeslow,theflip-flopisreset,andtheoutputgoeslow.Whentheoutputislow,alow-impedancepathisprovidedbetweendischarge(DISCH)andground.Theoutputcircuitiscapableofsinkingorsourcingcurrentupto200mA.Operationisspecifiedforsuppliesof5Vto15V.Witha5-Vsupply,outputlevelsarecompatiblewithTTLinputs.1Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©1973–2010,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasOnproductscomplianttoMIL-PRF-38535,allparametersareInstrumentsstandardwarranty.Productionprocessingdoesnottestedunlessotherwisenoted.Onallotherproducts,productionnecessarilyincludetestingofallparameters.processingdoesnotnecessarilyincludetestingofallparameters.NA555,NE555,SA555,SE555SLFS022H–SEPTEMBER1973–REVISEDJUNE2010(1)VTHRESMAXTAPACKAGE(2)ORDERABLEPARTNUMBERTOP-SIDEMARKINGVCC=15VPDIP–PTubeof50NE555PNE555PTubeof75NE555DSOIC–DNE555Reelof2500NE555DR0°Cto70°C11.2VSOP–PSReelof2000NE555PSRN555Tubeof150NE555PWTSSOP–PWN555Reelof2000NE555PWRPDIP–PTubeof50SA555PSA555P–40°Cto85°C11.2VTubeof75SA555DSOIC–DSA555Reelof2000SA555DRPDIP–PTubeof50NA555PNA555P–40°Cto105°C11.2VTubeof75NA555DSOIC–DNA555Reelof2000NA555DRPDIP–PTubeof50SE555PSE555PTubeof75SE555DSOIC–DSE555D–55°Cto125°C10.6Reelof2500SE555DRCDIP–JGTubeof50SE555JGSE555JGLCCC–FKTubeof55SE555FKSE555FK(1)Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthisdocument,orseetheTIwebsiteat(2)Packagedrawings,thermaldata,andsymbolizationareavailableat(1)VOLTAGE(1)SWITCHLowIrrelevantIrrelevantLowOnHigh1/3VCCIrrelevantHighOffHigh1/3VCC2/3VCCLowOnHigh1/3VCC2/3VCCAspreviouslyestablished(1)Voltagelevelsshownarenominal.2SubmitDocumentationFeedbackCopyright©1973–2010,TexasInstrumentsIncorporatedProductFolderLink(s):NA555NE555SA555SE5551SRR1TRIGTHRESVCCCONTRESETOUTDISCHGNDÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ48562173NA555,NE555,SA555,SE555–SEPTEMBER1973–REVISEDJUNE2010FUNCTIONALBLOCKDIAGRAMA.PinnumbersshownarefortheD,JG,P,PS,andPWpackages.B.RESETcanoverrideTRIG,whichcanoverrideTHRES.Copyright©1973–2010,TexasInstrumentsIncorporatedSubmitDocumentationFeedback3ProductFolderLink(s):NA555NE555SA555SE555NA555,NE555,SA555,SE555SLFS022H–SEPTEMBER1973–REVISEDJUNE2010(1)overoperatingfree-airtemperaturerange(unlessotherwisenoted)MINMAXUNITVCCSupplyvoltage(2)18VVIInputvoltageCONT,RESET,THRES,TRIGVCCVIOOutputcurrent±225mADpackage97Ppackage85qJAPackagethermalimpedance(3)(4)°C/WPSpackage95PWpackage149FKpackage5.61qJCPackagethermalimpedance(5)(6)°C/WJGpackage14.5TJOperatingvirtualjunctiontemperature150°CCasetemperaturefor60sFKpackage260°CLeadtemperature1,6mm(1/16in)fromcasefor60sJGpackage300°CTstgStoragetemperaturerange–65150°C(1)Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperatingconditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.(2)AllvoltagevaluesarewithrespecttoGND.(3)MaximumpowerdissipationisafunctionofTJ(max),qJA,andTA.ThemaximumallowablepowerdissipationatanyallowableambienttemperatureisPD=(TJ(max)-TA)/qJA.OperatingattheabsolutemaximumTJof150°Ccanaffectreliability.(4)ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-7.(5)Maximumpowerdissipation