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SN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20031POSTOFFICEBOX655303DALLAS,TEXAS75265DOperatingVoltageRangeof4.
5Vto5.
5VDOutputsCanDriveUpTo10LSTTLLoadsDLowPowerConsumption,80-AMaxICCDTypicaltpd=17nsD±4-mAOutputDriveat5VDLowInputCurrentof1AMaxDInputsAreTTL-VoltageCompatibleDDesignedSpecificallyforHigh-SpeedMemoryDecodersandDataTransmissionSystemsDIncorporateThreeEnableInputstoSimplifyCascadingand/orDataReception3212019910111213456781817161514Y1Y2NCY3Y4CG2ANCG2BG1BANCY6Y5VY0Y7GNDNCSN54HCT138.
.
.
FKPACKAGE(TOPVIEW)CCNCNointernalconnection12345678161514131211109ABCG2AG2BG1Y7GNDVCCY0Y1Y2Y3Y4Y5Y6SN54HCT138.
.
.
JORWPACKAGESN74HCT138.
.
.
D,N,NS,ORPWPACKAGE(TOPVIEW)description/orderinginformationThe'HCT138devicesaredesignedforhigh-performancememory-decodingordata-routingapplicationsrequiringveryshortpropagationdelaytimes.
Inhigh-performancememorysystems,thesedecoderscanminimizetheeffectsofsystemdecoding.
Whenemployedwithhigh-speedmemoriesutilizingafastenablecircuit,thedelaytimesofthesedecodersandtheenabletimeofthememoryusuallyarelessthanthetypicalaccesstimeofthememory.
Thismeansthattheeffectivesystemdelayintroducedbythedecodersisnegligible.
ORDERINGINFORMATIONTAPACKAGEORDERABLEPARTNUMBERTOP-SIDEMARKINGPDIPNTubeof25SN74HCT138NSN74HCT138NTubeof40SN74HCT138DSOICDReelof2500SN74HCT138DRHCT13840°Cto85°CSOICDReelof250SN74HCT138DTHCT13840°Cto85°CSOPNSReelof2000SN74HCT138NSRHCT138Tubeof90SN74HCT138PWTSSOPPWReelof2000SN74HCT138PWRHT138TSSOPPWReelof250SN74HCT138PWTHT138CDIPJTubeof25SNJ54HCT138JSNJ54HCT138J55°Cto125°CCFPWTubeof150SNJ54HCT138WSNJ54HCT138W55Cto125CLCCCFKTubeof55SNJ54HCT138FKSNJ54HCT138FKPackagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelinesareavailableatwww.
ti.
com/sc/package.
Copyright2003,TexasInstrumentsIncorporatedPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
ProductsconformtospecificationsperthetermsofTexasInstrumentsstandardwarranty.
Productionprocessingdoesnotnecessarilyincludetestingofallparameters.
OnproductscomplianttoMILPRF38535,allparametersaretestedunlessotherwisenoted.
Onallotherproducts,productionprocessingdoesnotnecessarilyincludetestingofallparameters.
SN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20032POSTOFFICEBOX655303DALLAS,TEXAS75265description/orderinginformation(continued)Theconditionsatthebinary-selectinputsandthethreeenableinputsselectoneofeightoutputlines.
Twoactive-low(G)andoneactive-high(G)enableinputsreducetheneedforexternalgatesorinverterswhenexpanding.
A24-linedecodercanbeimplementedwithoutexternalinverters,anda32-linedecoderrequiresonlyoneinverter.
Anenableinputcanbeusedasadatainputfordemultiplexingapplications.
FUNCTIONTABLEINPUTSOUTPUTSENABLESELECTOUTPUTSG1G2AG2BCBAY0Y1Y2Y3Y4Y5Y6Y7XHXXXXHHHHHHHHXXHXXXHHHHHHHHLXXXXXHHHHHHHHHLLLLLLHHHHHHHHLLLLHHLHHHHHHHLLLHLHHLHHHHHHLLLHHHHHLHHHHHLLHLLHHHHLHHHHLLHLHHHHHHLHHHLLHHLHHHHHHLHHLLHHHHHHHHHHLSN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20033POSTOFFICEBOX655303DALLAS,TEXAS75265logicdiagram(positivelogic)AY0Y1Y2Y3Y4Y5Y6Y7BCG1G2AG2BPinnumbersshownarefortheD,J,N,NS,PW,andWpackages.
12364515141312111097absolutemaximumratingsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)Supplyvoltagerange,VCC0.
5Vto7VInputclampcurrent,IIK(VIVCC)(seeNote1)±20mAOutputclampcurrent,IOK(VOVCC)(seeNote1)±20mAContinuousoutputcurrent,IO(VO=0toVCC)±25mAContinuouscurrentthroughVCCorGND±50mAPackagethermalimpedance,θJA(seeNote2):Dpackage73°C/WNpackage67°C/WNSpackage64°C/WPWpackage108°C/WStoragetemperaturerange,Tstg65°Cto150°CStressesbeyondthoselistedunder"absolutemaximumratings"maycausepermanentdamagetothedevice.
Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperatingconditions"isnotimplied.
Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
NOTES:1.
Theinputandoutputvoltageratingsmaybeexceedediftheinputandoutputcurrentratingsareobserved.
2.
ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-7.
SN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20034POSTOFFICEBOX655303DALLAS,TEXAS75265recommendedoperatingconditions(seeNote3)SN54HCT138SN74HCT138UNITMINNOMMAXMINNOMMAXUNITVCCSupplyvoltage4.
555.
54.
555.
5VVIHHigh-levelinputvoltageVCC=4.
5Vto5.
5V22VVILLow-levelinputvoltageVCC=4.
5Vto5.
5V0.
80.
8VVIInputvoltage0VCC0VCCVVOOutputvoltage0VCC0VCCVt/vInputtransitionrise/falltime500500nsTAOperatingfree-airtemperature551254085°CNOTE3:AllunusedinputsofthedevicemustbeheldatVCCorGNDtoensureproperdeviceoperation.
RefertotheTIapplicationreport,ImplicationsofSloworFloatingCMOSInputs,literaturenumberSCBA004.
electricalcharacteristicsoverrecommendedoperatingfree-airtemperaturerange(unlessotherwisenoted)PARAMETERTESTCONDITIONSVCCTA=25°CSN54HCT138SN74HCT138UNITPARAMETERTESTCONDITIONSVCCMINTYPMAXMINMAXMINMAXUNITVOHVI=VIHorVILIOH=20A4.
5V4.
44.
4994.
44.
4VVOHVI=VIHorVILIOH=4mA4.
5V3.
984.
33.
73.
84VVOLVI=VIHorVILIOL=20A4.
5V0.
0010.
10.
10.
1VVOLVI=VIHorVILIOL=4mA4.
5V0.
170.
260.
40.
33VIIVI=VCCor05.
5V±0.
1±100±1000±1000nAICCVI=VCCor0,IO=05.
5V816080AICCOneinputat0.
5Vor2.
4V,Otherinputsat0orVCC5.
5V1.
42.
432.
9mACi4.
5Vto5.
5V3101010pFThisistheincreaseinsupplycurrentforeachinputthatisatoneofthespecifiedTTLvoltagelevels,ratherthan0VorVCC.
switchingcharacteristicsoverrecommendedoperatingfree-airtemperaturerange,CL=50pF(unlessotherwisenoted)(seeFigure1)PARAMETERFROMTOVCCTA=25°CSN54HCT138SN74HCT138UNITPARAMETERFROM(INPUT)TO(OUTPUT)VCCMINTYPMAXMINMAXMINMAXUNITA,B,orCAnyY4.
5V23365445tpdA,B,orCAnyY5.
5V17324934nstpdEnableAnyY4.
5V22335042nsEnableAnyY5.
5V18304538ttY4.
5V12152219nsttY5.
5V11142017nsoperatingcharacteristics,TA=25°CPARAMETERTESTCONDITIONSTYPUNITCpdPowerdissipationcapacitanceNoload85pFSN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20035POSTOFFICEBOX655303DALLAS,TEXAS75265PARAMETERMEASUREMENTINFORMATIONVOLTAGEWAVEFORMINPUTRISEANDFALLTIMES1.
3V1.
3V0.
3V0.
3V2.
7V2.
7V3V0VtrtfInputVOLTAGEWAVEFORMSPROPAGATIONDELAYANDOUTPUTRISEANDFALLTIMES1.
3V1.
3V1.
3V10%10%90%90%3VVOHVOL0VtrtfInputIn-PhaseOutput1.
3VtPLHtPHL1.
3V1.
3V10%10%90%90%VOHVOLtrtftPHLtPLHOut-of-PhaseOutputTestPointFromOutputUnderTestLOADCIRCUITNOTES:A.
CLincludesprobeandtest-fixturecapacitance.
B.
Phaserelationshipsbetweenwaveformswerechosenarbitrarily.
Allinputpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR≤1MHz,ZO=50,tr=6ns,tf=6ns.
C.
Theoutputsaremeasuredoneatatimewithoneinputtransitionpermeasurement.
D.
tPLHandtPHLarethesameastpd.
CL=50pF(seeNoteA)Figure1.
LoadCircuitandVoltageWaveformsPACKAGEOPTIONADDENDUMwww.
ti.
com24-Aug-2018Addendum-Page1PACKAGINGINFORMATIONOrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Lead/BallFinish(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)Samples85504012AACTIVELCCCFK201TBDPOST-PLATEN/AforPkgType-55to12585504012ASNJ54HCT138FK8550401EAACTIVECDIPJ161TBDA42N/AforPkgType-55to1258550401EASNJ54HCT138J8550401FAACTIVECFPW161TBDA42N/AforPkgType-55to1258550401FASNJ54HCT138WJM38510/65852BEAACTIVECDIPJ161TBDA42N/AforPkgType-55to125JM38510/65852BEAM38510/65852BEAACTIVECDIPJ161TBDA42N/AforPkgType-55to125JM38510/65852BEASN54HCT138JACTIVECDIPJ161TBDA42N/AforPkgType-55to125SN54HCT138JSN74HCT138DACTIVESOICD1640Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DE4ACTIVESOICD1640Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DG4ACTIVESOICD1640Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DRACTIVESOICD162500Green(RoHS&noSb/Br)CUNIPDAU|CUSNLevel-1-260C-UNLIM-40to85HCT138SN74HCT138DRE4ACTIVESOICD162500Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DRG4ACTIVESOICD162500Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DTACTIVESOICD16250Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138NACTIVEPDIPN1625Green(RoHS&noSb/Br)CUNIPDAUN/AforPkgType-40to85SN74HCT138NSN74HCT138NE4ACTIVEPDIPN1625Green(RoHS&noSb/Br)CUNIPDAUN/AforPkgType-40to85SN74HCT138NSN74HCT138NSRACTIVESONS162000Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138PWACTIVETSSOPPW1690Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HT138PACKAGEOPTIONADDENDUMwww.
ti.
com24-Aug-2018Addendum-Page2OrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Lead/BallFinish(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)SamplesSN74HCT138PWRACTIVETSSOPPW162000Green(RoHS&noSb/Br)CUNIPDAU|CUSNLevel-1-260C-UNLIM-40to85HT138SN74HCT138PWRG4ACTIVETSSOPPW162000Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HT138SNJ54HCT138FKACTIVELCCCFK201TBDPOST-PLATEN/AforPkgType-55to12585504012ASNJ54HCT138FKSNJ54HCT138JACTIVECDIPJ161TBDA42N/AforPkgType-55to1258550401EASNJ54HCT138J(1)Themarketingstatusvaluesaredefinedasfollows:ACTIVE:Productdevicerecommendedfornewdesigns.
LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.
NRND:Notrecommendedfornewdesigns.
Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.
PREVIEW:Devicehasbeenannouncedbutisnotinproduction.
Samplesmayormaynotbeavailable.
OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.
(2)RoHS:TIdefines"RoHS"tomeansemiconductorproductsthatarecompliantwiththecurrentEURoHSrequirementsforall10RoHSsubstances,includingtherequirementthatRoHSsubstancedonotexceed0.
1%byweightinhomogeneousmaterials.
Wheredesignedtobesolderedathightemperatures,"RoHS"productsaresuitableforuseinspecifiedlead-freeprocesses.
TImayreferencethesetypesofproductsas"Pb-Free".
RoHSExempt:TIdefines"RoHSExempt"tomeanproductsthatcontainleadbutarecompliantwithEURoHSpursuanttoaspecificEURoHSexemption.
Green:TIdefines"Green"tomeanthecontentofChlorine(Cl)andBromine(Br)basedflameretardantsmeetJS709Blowhalogenrequirementsof<=1000ppmthreshold.
Antimonytrioxidebasedflameretardantsmustalsomeetthe<=1000ppmthresholdrequirement.
(3)MSL,PeakTemp.
-TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksoldertemperature.
(4)Theremaybeadditionalmarking,whichrelatestothelogo,thelottracecodeinformation,ortheenvironmentalcategoryonthedevice.
(5)MultipleDeviceMarkingswillbeinsideparentheses.
OnlyoneDeviceMarkingcontainedinparenthesesandseparatedbya"~"willappearonadevice.
IfalineisindentedthenitisacontinuationofthepreviouslineandthetwocombinedrepresenttheentireDeviceMarkingforthatdevice.
(6)Lead/BallFinish-OrderableDevicesmayhavemultiplematerialfinishoptions.
Finishoptionsareseparatedbyaverticalruledline.
Lead/BallFinishvaluesmaywraptotwolinesifthefinishvalueexceedsthemaximumcolumnwidth.
ImportantInformationandDisclaimer:TheinformationprovidedonthispagerepresentsTI'sknowledgeandbeliefasofthedatethatitisprovided.
TIbasesitsknowledgeandbeliefoninformationprovidedbythirdparties,andmakesnorepresentationorwarrantyastotheaccuracyofsuchinformation.
Effortsareunderwaytobetterintegrateinformationfromthirdparties.
TIhastakenandcontinuestotakereasonablestepstoproviderepresentativeandaccurateinformationbutmaynothaveconducteddestructivetestingorchemicalanalysisonincomingmaterialsandchemicals.
TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimitedinformationmaynotbeavailableforrelease.
PACKAGEOPTIONADDENDUMwww.
ti.
com24-Aug-2018Addendum-Page3InnoeventshallTI'sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTItoCustomeronanannualbasis.
OTHERQUALIFIEDVERSIONSOFSN54HCT138,SN74HCT138:Catalog:SN74HCT138Military:SN54HCT138NOTE:QualifiedVersionDefinitions:Catalog-TI'sstandardcatalogproductMilitary-QMLcertifiedforMilitaryandDefenseApplicationsTAPEANDREELINFORMATION*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQReelDiameter(mm)ReelWidthW1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantSN74HCT138DRSOICD162500330.
016.
46.
510.
32.
18.
016.
0Q1SN74HCT138DRSOICD162500330.
016.
86.
510.
32.
18.
016.
0Q1SN74HCT138DRG4SOICD162500330.
016.
46.
510.
32.
18.
016.
0Q1SN74HCT138PWRTSSOPPW162000330.
012.
46.
95.
61.
68.
012.
0Q1SN74HCT138PWRTSSOPPW162000330.
012.
46.
95.
61.
68.
012.
0Q1SN74HCT138PWRG4TSSOPPW162000330.
012.
46.
95.
61.
68.
012.
0Q1PACKAGEMATERIALSINFORMATIONwww.
ti.
com18-Apr-2016PackMaterials-Page1*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQLength(mm)Width(mm)Height(mm)SN74HCT138DRSOICD162500333.
2345.
928.
6SN74HCT138DRSOICD162500364.
0364.
027.
0SN74HCT138DRG4SOICD162500333.
2345.
928.
6SN74HCT138PWRTSSOPPW162000364.
0364.
027.
0SN74HCT138PWRTSSOPPW162000367.
0367.
035.
0SN74HCT138PWRG4TSSOPPW162000367.
0367.
035.
0PACKAGEMATERIALSINFORMATIONwww.
ti.
com18-Apr-2016PackMaterials-Page2www.
ti.
comPACKAGEOUTLINEC14X0.
652X4.
5516X0.
300.
19TYP6.
66.
21.
2MAX0.
150.
050.
25GAGEPLANE-80BNOTE44.
54.
3ANOTE35.
14.
90.
750.
50(0.
15)TYPTSSOP-1.
2mmmaxheightPW0016ASMALLOUTLINEPACKAGE4220204/A02/2017189160.
1CABPIN1INDEXAREASEEDETAILA0.
1CNOTES:1.
Alllineardimensionsareinmillimeters.
Anydimensionsinparenthesisareforreferenceonly.
DimensioningandtolerancingperASMEY14.
5M.
2.
Thisdrawingissubjecttochangewithoutnotice.
3.
Thisdimensiondoesnotincludemoldflash,protrusions,orgateburrs.
Moldflash,protrusions,orgateburrsshallnotexceed0.
15mmperside.
4.
Thisdimensiondoesnotincludeinterleadflash.
Interleadflashshallnotexceed0.
25mmperside.
5.
ReferenceJEDECregistrationMO-153.
SEATINGPLANEA20DETAILATYPICALSCALE2.
500www.
ti.
comEXAMPLEBOARDLAYOUT0.
05MAXALLAROUND0.
05MINALLAROUND16X(1.
5)16X(0.
45)14X(0.
65)(5.
8)(R0.
05)TYPTSSOP-1.
2mmmaxheightPW0016ASMALLOUTLINEPACKAGE4220204/A02/2017NOTES:(continued)6.
PublicationIPC-7351mayhavealternatedesigns.
7.
Soldermasktolerancesbetweenandaroundsignalpadscanvarybasedonboardfabricationsite.
LANDPATTERNEXAMPLEEXPOSEDMETALSHOWNSCALE:10XSYMMSYMM1891615.
000METALSOLDERMASKOPENINGMETALUNDERSOLDERMASKSOLDERMASKOPENINGEXPOSEDMETALEXPOSEDMETALSOLDERMASKDETAILSNON-SOLDERMASKDEFINED(PREFERRED)SOLDERMASKDEFINEDwww.
ti.
comEXAMPLESTENCILDESIGN16X(1.
5)16X(0.
45)14X(0.
65)(5.
8)(R0.
05)TYPTSSOP-1.
2mmmaxheightPW0016ASMALLOUTLINEPACKAGE4220204/A02/2017NOTES:(continued)8.
Lasercuttingapertureswithtrapezoidalwallsandroundedcornersmayofferbetterpasterelease.
IPC-7525mayhavealternatedesignrecommendations.
9.
Boardassemblysitemayhavedifferentrecommendationsforstencildesign.
SOLDERPASTEEXAMPLEBASEDON0.
125mmTHICKSTENCILSCALE:10XSYMMSYMM18916IMPORTANTNOTICEANDDISCLAIMERTIPROVIDESTECHNICALANDRELIABILITYDATA(INCLUDINGDATASHEETS),DESIGNRESOURCES(INCLUDINGREFERENCEDESIGNS),APPLICATIONOROTHERDESIGNADVICE,WEBTOOLS,SAFETYINFORMATION,ANDOTHERRESOURCES"ASIS"ANDWITHALLFAULTS,ANDDISCLAIMSALLWARRANTIES,EXPRESSANDIMPLIED,INCLUDINGWITHOUTLIMITATIONANYIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEORNON-INFRINGEMENTOFTHIRDPARTYINTELLECTUALPROPERTYRIGHTS.
TheseresourcesareintendedforskilleddevelopersdesigningwithTIproducts.
Youaresolelyresponsiblefor(1)selectingtheappropriateTIproductsforyourapplication,(2)designing,validatingandtestingyourapplication,and(3)ensuringyourapplicationmeetsapplicablestandards,andanyothersafety,security,orotherrequirements.
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TIgrantsyoupermissiontousetheseresourcesonlyfordevelopmentofanapplicationthatusestheTIproductsdescribedintheresource.
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TI'sproductsareprovidedsubjecttoTI'sTermsofSale(www.
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MailingAddress:TexasInstruments,PostOfficeBox655303,Dallas,Texas75265Copyright2019,TexasInstrumentsIncorporated
5Vto5.
5VDOutputsCanDriveUpTo10LSTTLLoadsDLowPowerConsumption,80-AMaxICCDTypicaltpd=17nsD±4-mAOutputDriveat5VDLowInputCurrentof1AMaxDInputsAreTTL-VoltageCompatibleDDesignedSpecificallyforHigh-SpeedMemoryDecodersandDataTransmissionSystemsDIncorporateThreeEnableInputstoSimplifyCascadingand/orDataReception3212019910111213456781817161514Y1Y2NCY3Y4CG2ANCG2BG1BANCY6Y5VY0Y7GNDNCSN54HCT138.
.
.
FKPACKAGE(TOPVIEW)CCNCNointernalconnection12345678161514131211109ABCG2AG2BG1Y7GNDVCCY0Y1Y2Y3Y4Y5Y6SN54HCT138.
.
.
JORWPACKAGESN74HCT138.
.
.
D,N,NS,ORPWPACKAGE(TOPVIEW)description/orderinginformationThe'HCT138devicesaredesignedforhigh-performancememory-decodingordata-routingapplicationsrequiringveryshortpropagationdelaytimes.
Inhigh-performancememorysystems,thesedecoderscanminimizetheeffectsofsystemdecoding.
Whenemployedwithhigh-speedmemoriesutilizingafastenablecircuit,thedelaytimesofthesedecodersandtheenabletimeofthememoryusuallyarelessthanthetypicalaccesstimeofthememory.
Thismeansthattheeffectivesystemdelayintroducedbythedecodersisnegligible.
ORDERINGINFORMATIONTAPACKAGEORDERABLEPARTNUMBERTOP-SIDEMARKINGPDIPNTubeof25SN74HCT138NSN74HCT138NTubeof40SN74HCT138DSOICDReelof2500SN74HCT138DRHCT13840°Cto85°CSOICDReelof250SN74HCT138DTHCT13840°Cto85°CSOPNSReelof2000SN74HCT138NSRHCT138Tubeof90SN74HCT138PWTSSOPPWReelof2000SN74HCT138PWRHT138TSSOPPWReelof250SN74HCT138PWTHT138CDIPJTubeof25SNJ54HCT138JSNJ54HCT138J55°Cto125°CCFPWTubeof150SNJ54HCT138WSNJ54HCT138W55Cto125CLCCCFKTubeof55SNJ54HCT138FKSNJ54HCT138FKPackagedrawings,standardpackingquantities,thermaldata,symbolization,andPCBdesignguidelinesareavailableatwww.
ti.
com/sc/package.
Copyright2003,TexasInstrumentsIncorporatedPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
ProductsconformtospecificationsperthetermsofTexasInstrumentsstandardwarranty.
Productionprocessingdoesnotnecessarilyincludetestingofallparameters.
OnproductscomplianttoMILPRF38535,allparametersaretestedunlessotherwisenoted.
Onallotherproducts,productionprocessingdoesnotnecessarilyincludetestingofallparameters.
SN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20032POSTOFFICEBOX655303DALLAS,TEXAS75265description/orderinginformation(continued)Theconditionsatthebinary-selectinputsandthethreeenableinputsselectoneofeightoutputlines.
Twoactive-low(G)andoneactive-high(G)enableinputsreducetheneedforexternalgatesorinverterswhenexpanding.
A24-linedecodercanbeimplementedwithoutexternalinverters,anda32-linedecoderrequiresonlyoneinverter.
Anenableinputcanbeusedasadatainputfordemultiplexingapplications.
FUNCTIONTABLEINPUTSOUTPUTSENABLESELECTOUTPUTSG1G2AG2BCBAY0Y1Y2Y3Y4Y5Y6Y7XHXXXXHHHHHHHHXXHXXXHHHHHHHHLXXXXXHHHHHHHHHLLLLLLHHHHHHHHLLLLHHLHHHHHHHLLLHLHHLHHHHHHLLLHHHHHLHHHHHLLHLLHHHHLHHHHLLHLHHHHHHLHHHLLHHLHHHHHHLHHLLHHHHHHHHHHLSN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20033POSTOFFICEBOX655303DALLAS,TEXAS75265logicdiagram(positivelogic)AY0Y1Y2Y3Y4Y5Y6Y7BCG1G2AG2BPinnumbersshownarefortheD,J,N,NS,PW,andWpackages.
12364515141312111097absolutemaximumratingsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)Supplyvoltagerange,VCC0.
5Vto7VInputclampcurrent,IIK(VIVCC)(seeNote1)±20mAOutputclampcurrent,IOK(VOVCC)(seeNote1)±20mAContinuousoutputcurrent,IO(VO=0toVCC)±25mAContinuouscurrentthroughVCCorGND±50mAPackagethermalimpedance,θJA(seeNote2):Dpackage73°C/WNpackage67°C/WNSpackage64°C/WPWpackage108°C/WStoragetemperaturerange,Tstg65°Cto150°CStressesbeyondthoselistedunder"absolutemaximumratings"maycausepermanentdamagetothedevice.
Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder"recommendedoperatingconditions"isnotimplied.
Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
NOTES:1.
Theinputandoutputvoltageratingsmaybeexceedediftheinputandoutputcurrentratingsareobserved.
2.
ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51-7.
SN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20034POSTOFFICEBOX655303DALLAS,TEXAS75265recommendedoperatingconditions(seeNote3)SN54HCT138SN74HCT138UNITMINNOMMAXMINNOMMAXUNITVCCSupplyvoltage4.
555.
54.
555.
5VVIHHigh-levelinputvoltageVCC=4.
5Vto5.
5V22VVILLow-levelinputvoltageVCC=4.
5Vto5.
5V0.
80.
8VVIInputvoltage0VCC0VCCVVOOutputvoltage0VCC0VCCVt/vInputtransitionrise/falltime500500nsTAOperatingfree-airtemperature551254085°CNOTE3:AllunusedinputsofthedevicemustbeheldatVCCorGNDtoensureproperdeviceoperation.
RefertotheTIapplicationreport,ImplicationsofSloworFloatingCMOSInputs,literaturenumberSCBA004.
electricalcharacteristicsoverrecommendedoperatingfree-airtemperaturerange(unlessotherwisenoted)PARAMETERTESTCONDITIONSVCCTA=25°CSN54HCT138SN74HCT138UNITPARAMETERTESTCONDITIONSVCCMINTYPMAXMINMAXMINMAXUNITVOHVI=VIHorVILIOH=20A4.
5V4.
44.
4994.
44.
4VVOHVI=VIHorVILIOH=4mA4.
5V3.
984.
33.
73.
84VVOLVI=VIHorVILIOL=20A4.
5V0.
0010.
10.
10.
1VVOLVI=VIHorVILIOL=4mA4.
5V0.
170.
260.
40.
33VIIVI=VCCor05.
5V±0.
1±100±1000±1000nAICCVI=VCCor0,IO=05.
5V816080AICCOneinputat0.
5Vor2.
4V,Otherinputsat0orVCC5.
5V1.
42.
432.
9mACi4.
5Vto5.
5V3101010pFThisistheincreaseinsupplycurrentforeachinputthatisatoneofthespecifiedTTLvoltagelevels,ratherthan0VorVCC.
switchingcharacteristicsoverrecommendedoperatingfree-airtemperaturerange,CL=50pF(unlessotherwisenoted)(seeFigure1)PARAMETERFROMTOVCCTA=25°CSN54HCT138SN74HCT138UNITPARAMETERFROM(INPUT)TO(OUTPUT)VCCMINTYPMAXMINMAXMINMAXUNITA,B,orCAnyY4.
5V23365445tpdA,B,orCAnyY5.
5V17324934nstpdEnableAnyY4.
5V22335042nsEnableAnyY5.
5V18304538ttY4.
5V12152219nsttY5.
5V11142017nsoperatingcharacteristics,TA=25°CPARAMETERTESTCONDITIONSTYPUNITCpdPowerdissipationcapacitanceNoload85pFSN54HCT138,SN74HCT1383LINETO8LINEDECODERS/DEMULTIPLEXERSSCLS171EMARCH1984REVISEDSEPTEMBER20035POSTOFFICEBOX655303DALLAS,TEXAS75265PARAMETERMEASUREMENTINFORMATIONVOLTAGEWAVEFORMINPUTRISEANDFALLTIMES1.
3V1.
3V0.
3V0.
3V2.
7V2.
7V3V0VtrtfInputVOLTAGEWAVEFORMSPROPAGATIONDELAYANDOUTPUTRISEANDFALLTIMES1.
3V1.
3V1.
3V10%10%90%90%3VVOHVOL0VtrtfInputIn-PhaseOutput1.
3VtPLHtPHL1.
3V1.
3V10%10%90%90%VOHVOLtrtftPHLtPLHOut-of-PhaseOutputTestPointFromOutputUnderTestLOADCIRCUITNOTES:A.
CLincludesprobeandtest-fixturecapacitance.
B.
Phaserelationshipsbetweenwaveformswerechosenarbitrarily.
Allinputpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR≤1MHz,ZO=50,tr=6ns,tf=6ns.
C.
Theoutputsaremeasuredoneatatimewithoneinputtransitionpermeasurement.
D.
tPLHandtPHLarethesameastpd.
CL=50pF(seeNoteA)Figure1.
LoadCircuitandVoltageWaveformsPACKAGEOPTIONADDENDUMwww.
ti.
com24-Aug-2018Addendum-Page1PACKAGINGINFORMATIONOrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Lead/BallFinish(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)Samples85504012AACTIVELCCCFK201TBDPOST-PLATEN/AforPkgType-55to12585504012ASNJ54HCT138FK8550401EAACTIVECDIPJ161TBDA42N/AforPkgType-55to1258550401EASNJ54HCT138J8550401FAACTIVECFPW161TBDA42N/AforPkgType-55to1258550401FASNJ54HCT138WJM38510/65852BEAACTIVECDIPJ161TBDA42N/AforPkgType-55to125JM38510/65852BEAM38510/65852BEAACTIVECDIPJ161TBDA42N/AforPkgType-55to125JM38510/65852BEASN54HCT138JACTIVECDIPJ161TBDA42N/AforPkgType-55to125SN54HCT138JSN74HCT138DACTIVESOICD1640Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DE4ACTIVESOICD1640Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DG4ACTIVESOICD1640Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DRACTIVESOICD162500Green(RoHS&noSb/Br)CUNIPDAU|CUSNLevel-1-260C-UNLIM-40to85HCT138SN74HCT138DRE4ACTIVESOICD162500Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DRG4ACTIVESOICD162500Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138DTACTIVESOICD16250Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138NACTIVEPDIPN1625Green(RoHS&noSb/Br)CUNIPDAUN/AforPkgType-40to85SN74HCT138NSN74HCT138NE4ACTIVEPDIPN1625Green(RoHS&noSb/Br)CUNIPDAUN/AforPkgType-40to85SN74HCT138NSN74HCT138NSRACTIVESONS162000Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HCT138SN74HCT138PWACTIVETSSOPPW1690Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HT138PACKAGEOPTIONADDENDUMwww.
ti.
com24-Aug-2018Addendum-Page2OrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Lead/BallFinish(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)SamplesSN74HCT138PWRACTIVETSSOPPW162000Green(RoHS&noSb/Br)CUNIPDAU|CUSNLevel-1-260C-UNLIM-40to85HT138SN74HCT138PWRG4ACTIVETSSOPPW162000Green(RoHS&noSb/Br)CUNIPDAULevel-1-260C-UNLIM-40to85HT138SNJ54HCT138FKACTIVELCCCFK201TBDPOST-PLATEN/AforPkgType-55to12585504012ASNJ54HCT138FKSNJ54HCT138JACTIVECDIPJ161TBDA42N/AforPkgType-55to1258550401EASNJ54HCT138J(1)Themarketingstatusvaluesaredefinedasfollows:ACTIVE:Productdevicerecommendedfornewdesigns.
LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.
NRND:Notrecommendedfornewdesigns.
Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.
PREVIEW:Devicehasbeenannouncedbutisnotinproduction.
Samplesmayormaynotbeavailable.
OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.
(2)RoHS:TIdefines"RoHS"tomeansemiconductorproductsthatarecompliantwiththecurrentEURoHSrequirementsforall10RoHSsubstances,includingtherequirementthatRoHSsubstancedonotexceed0.
1%byweightinhomogeneousmaterials.
Wheredesignedtobesolderedathightemperatures,"RoHS"productsaresuitableforuseinspecifiedlead-freeprocesses.
TImayreferencethesetypesofproductsas"Pb-Free".
RoHSExempt:TIdefines"RoHSExempt"tomeanproductsthatcontainleadbutarecompliantwithEURoHSpursuanttoaspecificEURoHSexemption.
Green:TIdefines"Green"tomeanthecontentofChlorine(Cl)andBromine(Br)basedflameretardantsmeetJS709Blowhalogenrequirementsof<=1000ppmthreshold.
Antimonytrioxidebasedflameretardantsmustalsomeetthe<=1000ppmthresholdrequirement.
(3)MSL,PeakTemp.
-TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksoldertemperature.
(4)Theremaybeadditionalmarking,whichrelatestothelogo,thelottracecodeinformation,ortheenvironmentalcategoryonthedevice.
(5)MultipleDeviceMarkingswillbeinsideparentheses.
OnlyoneDeviceMarkingcontainedinparenthesesandseparatedbya"~"willappearonadevice.
IfalineisindentedthenitisacontinuationofthepreviouslineandthetwocombinedrepresenttheentireDeviceMarkingforthatdevice.
(6)Lead/BallFinish-OrderableDevicesmayhavemultiplematerialfinishoptions.
Finishoptionsareseparatedbyaverticalruledline.
Lead/BallFinishvaluesmaywraptotwolinesifthefinishvalueexceedsthemaximumcolumnwidth.
ImportantInformationandDisclaimer:TheinformationprovidedonthispagerepresentsTI'sknowledgeandbeliefasofthedatethatitisprovided.
TIbasesitsknowledgeandbeliefoninformationprovidedbythirdparties,andmakesnorepresentationorwarrantyastotheaccuracyofsuchinformation.
Effortsareunderwaytobetterintegrateinformationfromthirdparties.
TIhastakenandcontinuestotakereasonablestepstoproviderepresentativeandaccurateinformationbutmaynothaveconducteddestructivetestingorchemicalanalysisonincomingmaterialsandchemicals.
TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimitedinformationmaynotbeavailableforrelease.
PACKAGEOPTIONADDENDUMwww.
ti.
com24-Aug-2018Addendum-Page3InnoeventshallTI'sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTItoCustomeronanannualbasis.
OTHERQUALIFIEDVERSIONSOFSN54HCT138,SN74HCT138:Catalog:SN74HCT138Military:SN54HCT138NOTE:QualifiedVersionDefinitions:Catalog-TI'sstandardcatalogproductMilitary-QMLcertifiedforMilitaryandDefenseApplicationsTAPEANDREELINFORMATION*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQReelDiameter(mm)ReelWidthW1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantSN74HCT138DRSOICD162500330.
016.
46.
510.
32.
18.
016.
0Q1SN74HCT138DRSOICD162500330.
016.
86.
510.
32.
18.
016.
0Q1SN74HCT138DRG4SOICD162500330.
016.
46.
510.
32.
18.
016.
0Q1SN74HCT138PWRTSSOPPW162000330.
012.
46.
95.
61.
68.
012.
0Q1SN74HCT138PWRTSSOPPW162000330.
012.
46.
95.
61.
68.
012.
0Q1SN74HCT138PWRG4TSSOPPW162000330.
012.
46.
95.
61.
68.
012.
0Q1PACKAGEMATERIALSINFORMATIONwww.
ti.
com18-Apr-2016PackMaterials-Page1*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQLength(mm)Width(mm)Height(mm)SN74HCT138DRSOICD162500333.
2345.
928.
6SN74HCT138DRSOICD162500364.
0364.
027.
0SN74HCT138DRG4SOICD162500333.
2345.
928.
6SN74HCT138PWRTSSOPPW162000364.
0364.
027.
0SN74HCT138PWRTSSOPPW162000367.
0367.
035.
0SN74HCT138PWRG4TSSOPPW162000367.
0367.
035.
0PACKAGEMATERIALSINFORMATIONwww.
ti.
com18-Apr-2016PackMaterials-Page2www.
ti.
comPACKAGEOUTLINEC14X0.
652X4.
5516X0.
300.
19TYP6.
66.
21.
2MAX0.
150.
050.
25GAGEPLANE-80BNOTE44.
54.
3ANOTE35.
14.
90.
750.
50(0.
15)TYPTSSOP-1.
2mmmaxheightPW0016ASMALLOUTLINEPACKAGE4220204/A02/2017189160.
1CABPIN1INDEXAREASEEDETAILA0.
1CNOTES:1.
Alllineardimensionsareinmillimeters.
Anydimensionsinparenthesisareforreferenceonly.
DimensioningandtolerancingperASMEY14.
5M.
2.
Thisdrawingissubjecttochangewithoutnotice.
3.
Thisdimensiondoesnotincludemoldflash,protrusions,orgateburrs.
Moldflash,protrusions,orgateburrsshallnotexceed0.
15mmperside.
4.
Thisdimensiondoesnotincludeinterleadflash.
Interleadflashshallnotexceed0.
25mmperside.
5.
ReferenceJEDECregistrationMO-153.
SEATINGPLANEA20DETAILATYPICALSCALE2.
500www.
ti.
comEXAMPLEBOARDLAYOUT0.
05MAXALLAROUND0.
05MINALLAROUND16X(1.
5)16X(0.
45)14X(0.
65)(5.
8)(R0.
05)TYPTSSOP-1.
2mmmaxheightPW0016ASMALLOUTLINEPACKAGE4220204/A02/2017NOTES:(continued)6.
PublicationIPC-7351mayhavealternatedesigns.
7.
Soldermasktolerancesbetweenandaroundsignalpadscanvarybasedonboardfabricationsite.
LANDPATTERNEXAMPLEEXPOSEDMETALSHOWNSCALE:10XSYMMSYMM1891615.
000METALSOLDERMASKOPENINGMETALUNDERSOLDERMASKSOLDERMASKOPENINGEXPOSEDMETALEXPOSEDMETALSOLDERMASKDETAILSNON-SOLDERMASKDEFINED(PREFERRED)SOLDERMASKDEFINEDwww.
ti.
comEXAMPLESTENCILDESIGN16X(1.
5)16X(0.
45)14X(0.
65)(5.
8)(R0.
05)TYPTSSOP-1.
2mmmaxheightPW0016ASMALLOUTLINEPACKAGE4220204/A02/2017NOTES:(continued)8.
Lasercuttingapertureswithtrapezoidalwallsandroundedcornersmayofferbetterpasterelease.
IPC-7525mayhavealternatedesignrecommendations.
9.
Boardassemblysitemayhavedifferentrecommendationsforstencildesign.
SOLDERPASTEEXAMPLEBASEDON0.
125mmTHICKSTENCILSCALE:10XSYMMSYMM18916IMPORTANTNOTICEANDDISCLAIMERTIPROVIDESTECHNICALANDRELIABILITYDATA(INCLUDINGDATASHEETS),DESIGNRESOURCES(INCLUDINGREFERENCEDESIGNS),APPLICATIONOROTHERDESIGNADVICE,WEBTOOLS,SAFETYINFORMATION,ANDOTHERRESOURCES"ASIS"ANDWITHALLFAULTS,ANDDISCLAIMSALLWARRANTIES,EXPRESSANDIMPLIED,INCLUDINGWITHOUTLIMITATIONANYIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEORNON-INFRINGEMENTOFTHIRDPARTYINTELLECTUALPROPERTYRIGHTS.
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