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5485/DM5485/DM74854-BitMagnitudeComparatorsJune19895485/DM5485/DM74854-BitMagnitudeComparatorsGeneralDescriptionThese4-bitmagnitudecomparatorsperformcomparisonofhaveahigh-levelvoltageappliedtotheAeBinput.ThestraightbinaryorBCDcodes.Threefully-decodeddecisionscascadingpathsareimplementedwithonlyatwo-gate-levelabouttwo4-bitwords(A,B)aremadeandareexternallydelaytoreduceoverallcomparisontimesforlongwords.availableatthreeoutputs.Thesedevicesarefullyexpand-abletoanynumberofbitswithoutexternalgates.WordsofFeaturesgreaterlengthmaybecomparedbyconnectingcompara-YTypicalpowerdissipation275mWtorsincascade.TheAlB,AkB,andABoutputsofaeYTypicaldelay(4-bitwords)23nsstagehandlingless-significantbitsareconnectedtothecor-YAlternateMilitary/Aerospacedevice(5485)isavailable.respondinginputsofthenextstagehandlingmore-signifi-ContactaNationalSemiconductorSalesOffice/Distrib-cantbits.Thestagehandlingtheleast-significantbitsmustutorforspecifications.ConnectionDiagramDual-In-LinePackageTL/F/6530±1OrderNumber5485DMQB,5485FMQB,DM5485J,DM5485WorDM7485NSeeNSPackageNumberJ16A,N16EorW16AC1995NationalSemiconductorCorporationTL/F/6530RRD-B30M105/PrintedinU.S.A.AbsoluteMaximumRatings(Note)IfMilitary/Aerospacespecifieddevicesarerequired,Note:The``AbsoluteMaximumRatings''arethosevaluespleasecontacttheNationalSemiconductorSalesbeyondwhichthesafetyofthedevicecannotbeguaran-Office/Distributorsforavailabilityandspecifications.teed.Thedeviceshouldnotbeoperatedattheselimits.TheSupplyVoltage7Vparametricvaluesdefinedinthe``ElectricalCharacteristics''tablearenotguaranteedattheabsolutemaximumratings.InputVoltage5.5VThe``RecommendedOperatingConditions''tablewilldefineOperatingFreeAirTemperatureRangetheconditionsforactualdeviceoperation.DM54and54b55§Ctoa125§CDM740§Ctoa70§CStorageTemperatureRangeb65§Ctoa150§CRecommendedOperatingConditionsDM5485DM7485SymbolParameterUnitsMinNomMaxMinNomMaxVCCSupplyVoltage4.555.54.7555.25VVIHHighLevelInputVoltage22VVILLowLevelInput
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