SN74LV393.pdf

SN74LV393.pdf

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SN54LV393A,SN74LV393ADUAL4-BITBINARYCOUNTERSSCLS457BFEBRUARY2001REVISEDJULY20031POSTOFFICEBOX655303DALLAS,TEXAS75265?

2-Vto5.5-VVCCOperation?

Maxtpdof10nsat5V?

TypicalVOLP（OutputGroundBounce）2.3VatVCC=3.3V,TA=25C?

IoffSupportsPartial-Power-Down-ModeOperation?

Dual4-BitBinaryCountersWithIndividualClocks?

DirectClearforEach4-BitCounter?

CanSignificantlyImproveSystemDensitiesbyReducingCounterPackageCountby50Percent?

Latch-UpPerformanceExceeds100mAPerJESD78,ClassII?

ESDProtectionExceedsJESD222000-VHuman-BodyModel（A114-A）200-VMachineModel（A115-A）1000-VCharged-DeviceModel（C101）description/orderinginformationTheLV393Adevicescontaineightflip-flopsandadditionalgatingtoimplementtwoindividual4-bitcountersinasinglepackage.Thesedevicesaredesignedfor2-Vto5.5-VVCCoperation.ORDERINGINFORMATIONTAPACKAGEORDERABLEPARTNUMBERTOP-SIDEMARKINGSOICDTubeof50SN74LV393ADLV393ASOICDReelof2500SN74LV393ADRLV393ASOPNSReelof2000SN74LV393ANSR74LV393A40Cto85CSSOPDBReelof2000SN74LV393ADBRLV393A40Cto85CTubeof90SN74LV393APWTSSOPPWReelof2000SN74LV393APWRLV393AReelof250SN74LV393APWTTVSOPDGVReelof2000SN74LV393ADGVRLV393ACDIPJTubeof25SNJ54LV393AJSNJ54LV393AJ55Cto125CCFPWTubeof150SNJ54LV393AWSNJ54LV393AWLCCCFKTubeof55SNJ54LV393AFKSNJ54LV393AFKPackagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelinesareavailableat2003,TexasInstrumentsIncorporatedPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.SN54LV393A.JORWPACKAGESN74LV393A.D,DB,DGV,NS,ORPWPACKAGE（TOPVIEW）12345671413121110981CLK1CLR1QA1QB1QC1QDGNDVCC2CLK2CLR2QA2QB2QC2QDSN54LV393A.FKPACKAGE（TOPVIEW）NCNointernalconnection32120199101112134567818171615142CLRNC2QANC2QB1QANC1QBNC1QC1CLR1CLKNCV2CLKDGNDNCCC1QD2QC2QUNLESSOTHERWISENOTEDthisdocumentcontainsPRODUCTIONDATAinformationcurrentasofpublicationdate.ProductsconformtospecificationsperthetermsofTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.SN54LV393A,SN74LV393ADUAL4-BITBINARYCOUNTERSSCLS457BFEBRUARY2001REVISEDJULY20032POSTOFFICEBOX655303DALLAS,TEXAS75265description/orderinginformaton（continued）Thesedevicescomprisetwoindependent4-bitbinarycounters,eachhavingaclear（CLR）andaclock（CLK）input.Thesedeviceschangestateonthenegative-goingtransitionoftheCLKpulse.N-bitbinarycounterscanbeimplementedwitheachpackage,providingthecapabilityofdivideby256.TheLV393Adeviceshaveparalleloutputsfromeachcounterstagesothatanysubmultipleoftheinputcountfrequencyisavailableforsystemtimingsignals.Thesedevicesarefullyspecifiedforpartial-power-downapplicationsusingIoff.TheIoffcircuitrydisablestheoutputs,preventingdamagingcurrentbackflowthroughthedeviceswhentheyarepowereddown.FUNCTIONTABLEINPUTSFUNCTIONCLKCLRFUNCTIONLNochangeLAdvancetonextstageXHAlloutputsLlogicdiagram,eachcounter（positivelogic）RTQACLRCLKRTQBRTQCRTQDQQQQSN54LV393A,SN74LV393ADUAL4-BITBINARYCOUNTERSSCLS457BFEBRUARY2001REVISEDJULY20033POSTOFFICEBOX655303DALLAS,TEXAS75265timingdiagramCLKCLRQAQBQCQDClearOutputsCountUpabsolutemaximumratingsoveroperatingfree-airtemperaturerange（unlessotherwisenoted）Supplyvoltagerange,VCC0.5Vto7V.Inputvoltagerange,VI（seeNote1）0.5Vto7V.Outputvoltagerangeappliedinhighorlowstate,VO（seeNotes1and2）0.5VtoVCC+0.5V.Outputvoltagerangeappliedinpower-offstate,VO（seeNote1）0.5Vto7V.Inputclampcurrent,IIK（VI0）20mA.Outputclampcurrent,IOK（VOVCC）50mA.Continuousoutputcurrent,IO（VO=0toVCC）25mA.ContinuouscurrentthroughVCCorGND50mA.Packagethermalimpedance,JA（seeNote3）:

Dpackage86C/W.DBpackage96C/W.DGVpackage127C/W.NSpackage76C/W.PWpackage113C/W.Storagetemperaturerange,Tstg65Cto150C.Stressesbeyondthoselistedunder“absolutemaximumratings”maycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder“recommendedoperatingconditions”isnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.NOTES:

1.Theinputandoutputvoltageratingsmaybeexceedediftheinputandoutputcurrentratingsareobserved.2.Thisvalueislimitedto7Vmaximum.3.ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-7.SN54LV393A,SN74LV393ADUAL4-BITBINARYCOUNTERSSCLS457BFEBRUARY2001REVISEDJULY20034POSTOFFICEBOX655303DALLAS,TEXAS75265recommendedoperatingconditions（seeNote4）SN54LV393ASN74LV393AUNITMINMAXMINMAXUNITVCCSupplyvoltage25.525.5VVCC=2V1.51.5VIHHighlevelinputvoltageVCC=2.3Vto2.7VVCC