电子技术-芯片资料-74LS367.pdf

TL/F/642954LS367A/DM54LS367A/DM74LS367A Hex TRI-STATE BuffersMay 198954LS367A/DM54LS367A/DM74LS367AHex TRI-STATE?BuffersGeneral DescriptionThis device contains six independent gates each of whichperforms a non-inverting buffer function.The outputs havethe TRI-STATE feature.When enabled,the outputs exhibitthe low impedance characteristics of a standard LS outputwith additional drive capability to permit the driving of buslines without external resistors.When disabled,both theoutput transistors are turned off presenting a high-imped-ance state to the bus line.Thus the output will act neither asa significant load nor as a driver.To minimize the possibilitythat two outputs will attempt to take a common bus to oppo-site logic levels,the disable time is shorter than the enabletime of the outputs.FeaturesYAlternatemilitary/aerospacedevice(54LS367A)isavailable.Contact a National Semiconductor sales of-fice/distributor for specifications.Connection DiagramDual-In-Line PackageTL/F/64291Order Number 54LS367ADMQB,54LS367AFMQB,54LS367ALMQB,DM54LS367AJ,DM54LS367AW,DM74LS367AM or DM74LS367ANSee NS Package Number E20A,J16A,M16A,N16E or W16AFunction TableYeAInputsOutputAGYLLLHLHXHHi-ZHeHigh Logic LevelLeLow Logic LevelXeEither Low or High Logic LevelHi-ZeTRI-STATE(Outputs are disabled)TRI-STATE?is a registered trademark of National Semiconductor Corporation.C1995 National Semiconductor CorporationRRD-B30M105/Printed in U.S.A.Absolute Maximum Ratings(Note)If Military/Aerospace specified devices are required,pleasecontacttheNationalSemiconductorSalesOffice/Distributors for availability and specifications.Supply Voltage7VInput Voltage7VOperating Free Air Temperature RangeDM54LSb55C toa125CDM74LS0C toa70CStorage Temperature Rangeb65C toa150CNote:The Absolute Maximum Ratings are those valuesbeyond which the safety of the device cannot be guaran-teed.The device should not be operated at these limits.Theparametric values defined in the Electrical Characteristicstable are not guaranteed at the absolute maximum ratings.The Recommended Operating Conditions table will definethe conditions for actual device operation.Recommended Operating ConditionsSymbolParameterDM54LS367ADM74LS367AUnitsMinNomMaxMinNomMaxVCCSupply Voltage4.555.54.7555.25VVIHHigh Level Input Voltage22VVILLow Level Input Voltage0.70.8VIOHHigh Level Output Currentb1b2.6mAIOLLow Level Output Current1224mATAFree Air Operating Temperatureb55125070CElectrical Characteristicsover recommended operating free air temperature range(unless otherwise noted)SymbolParameterConditionsMinTypMaxUnits(Note 1)VIInput Clamp VoltageVCCeMin,IIe b18 mAb1.5VVOHHigh Level OutputVCCeMin,IOHeMax2.43.4VVoltageVILeMax,VIHeMinVOLLow Level OutputVCCeMin,IOLeMaxDM540.250.4VoltageVILeMax,VIHeMinDM740.350.5VIOLe12 mA,VCCeMinDM740.250.4IIInput CurrentMaxVCCeMax,VIe7V0.1mAInput VoltageIIHHigh Level InputVCCeMax,VIe2.7V20mACurrentIILLow Level InputVCCeMax,VIe0.5VA Inputb20mACurrent(Note 4)VCCeMax,VIe0.4VA Inputb0.4(Note 5)mAVCCeMax,VIe0.4VG Inputb0.4IOZHOff-State Output CurrentVCCeMax,VOe2.4Vwith High Level OutputVIHeMin,VILeMax20mAVoltage AppliedIOZLOff-State Output CurrentVCCeMax,VOe0.4Vwith Low Level OutputVIHeMin,VILeMaxb20mAVoltage AppliedIOSShort CircuitVCCeMaxDM54b20b100mAOutput Current(Note 2)DM74b20b100ICCSupply CurrentVCCeMax(Note 3)1424mANote 1:All typicals are at VCCe5V,TAe25C.Note 2:Not more than one output should be shorted at a time,and the duration should not exceed one second.Note 3:ICCis measured with the DATA inputs grounded and the OUTPUT CONTROLS at 4.5V.Note 4:Both G inputs are at 2V.Note 5:Both G inputs at 0.4V.2Switching Characteristicsat VCCe5V and TAe25C(See Section 1 for Test Waveforms and Output Load)RLe667XSymbolParameterCLe50 pFCLe150 pFUnitsMinMaxMinMaxtPLHPropagation Delay Time Low1625nsto High Level OutputtPHLPropagation Delay Time High1625nsto Low Level OutputtPZHOutput Enable Time to3040nsHigh Level OutputtPZLOutput Enable Time to3040nsLow Level OutputtPHZOutput Disable Time from20nsHigh Level Output(Note 6)tPLZOutput Disable Time from20nsLow Level Output(Note 6)Note 6:CLe5 pF.3Physical Dimensionsinches(millimeters)Ceramic Leadless Chip Carrier Package(E)Order Number 54LS367ALMQBNS Package Number E20ACeramic Dual-In-Line Package(J)Order Number 54LS367ADMQB or DM54LS367AJNS Package Number J16A4Physical Dimensionsinches(millimeters)(Continued)16-Lead Small Outline Molded Package(M)Order Number DM74LS367AMNS Package Number M16A16-Lead Molded Dual-In-Line Package(N)Order Number DM74LS367ANNS Package Number N16E554LS367A/DM54LS367A/DM74LS367A Hex TRI-STATE BuffersPhysical Dimensionsinches(millimeters)(Continued)16-Lead Ceramic Flat Package(W)Order Number 54LS367AFMQB or DM54LS367AWNS Package Number W16ALIFE SUPPORT POLICYNATIONALS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORTDEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONALSEMICONDUCTOR CORPORATION.As used herein:1.Lifesupportdevicesorsystemsaredevicesor2.A critical component is any component of a lifesystems which,(a)are intended for surgical implantsupport device or system whose failure to perform caninto the body,or(b)support or sustain life,and whosebe reasonably expected to cause the failure of the lifefailure to perform,when properly used in accordancesupport device or system,or to affect its safety orwith instructions for use provided in the labeling,caneffectiveness.be reasonably expected to result in a significant injuryto the user.National SemiconductorNational SemiconductorNational SemiconductorNational SemiconductorCorporationEuropeHong Kong Ltd.Japan Ltd.1111 West Bardin RoadFax:(a49)0-180-530 85 8613th Floor,Straight Block,Tel:[phone]Arlington,TX 76017Email:Ocean Centre,5 Canton Rd.Fax:[phone]Tel:[phone]Deutsch Tel:(a49)0-180-530 85 85Tsimshatsui,KowloonFax:1(800)737-7018EnglishTel:(a49)0-180-532 78 32Hong KongFran3ais Tel:(a49)0-180-532 93 58Tel:[phone]ItalianoTel:(a49)0-180-534 16 80Fax:[phone]National does not assume any responsibility for use of any circuitry described,no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.