74465 TTL 三态同相2与使能端八总线缓冲器

DM74LS465(DM81LS95A)󰁋DM74LS466(DM81LS96A)󰁋DM74LS467(DM81LS97A)󰁋DM74LS468(DM81LS98A)TRI-STATE󰀂OctalBuffer

GeneralDescription

Thesedevicesprovideeight󰀷two-inputbuffersineachpack-age󰀟Allemploythenewestlow-power-SchottkyTTLtech-nology󰀟Oneofthetwoinputstoeachbufferisusedasacontrollinetogatetheoutputintothehigh-impedancestate󰀷whiletheotherinputpassesthedatathroughthebuff-er󰀟The’LS465and’LS467presenttruedataattheoutputs󰀷whilethe’LS466and’LS468areinverting󰀟Onthe’LS465and’LS466versions󰀷alleightTRI-STATEenablelinesarecommon󰀷withaccessthrougha2-inputNORgate󰀟Onthe’LS467and’LS468versions󰀷fourbuffersareenabledfromonecommonline󰀷andtheotherfourbuffersareenabledfromanothercommonline󰀟InallcasestheoutputsareplacedintheTRI-STATEconditionbyapplyingahighlogicleveltotheenablepins󰀟Thesedevicesrepresentoctal󰀷low

power-SchottkyversionsoftheverypopularDM󰁋74365󰀷366󰀷367󰀷and368(DM8095󰀷96󰀷97󰀷and98)TRI-STATEhexbuffers󰀟

Features

YY

Y

Y

OctalversionsofpopularDM74365󰀷366󰀷367󰀷and368(DM8095󰀷96󰀷97and98)Typicalpowerdissipation

LS465󰀷467󰀷(LS95A󰀷97A)80mWLS466󰀷468󰀷(LS96A󰀷98A)65mWTypicalpropagationdelay

LS465󰀷467(LS95A󰀷97A)15nsLS466󰀷468(LS96A󰀷98A)10ns

Lowpower-Schottky󰀷TRI-STATEtechnology

ConnectionDiagrams

Dual-In-LinePackages

TL󰁋F󰁋35–1TL󰁋F󰁋35–2

TL󰁋F󰁋35–3TL󰁋F󰁋35–4

OrderNumbersDM74LS465WM󰁋DM81LS95AWM󰀷DM74LS465N󰁋DM81LS95AN󰀷

DM74LS466WM󰁋DM81LS96AWM󰀷DM74LS466N󰁋DM81LS96AN󰀷DM74LS467WM󰁋DM81LS97AWM󰀷DM74LS467N󰁋DM81LS97AN󰀷DM74LS468WM󰁋DM81LS98AWMorDM74LS468N󰁋DM81LS98AN

SeeNSPackageNumberM20BorN20A

TRI-STATE󰀂isaregisteredtrademarkofNationalSemiconductorCorporation󰀟C1995NationalSemiconductorCorporation

TL󰁋F󰁋35

RRD-B30M105󰁋PrintedinU󰀟S󰀟A󰀟

AbsoluteMaximumRatings(Note)

SupplyVoltage

InputVoltage

OperatingFreeAirTemperatureRangeDM74LS󰁋DM81LSStorageTemperatureRange

7V7V

0󰀃Ctoa70󰀃C

b65󰀃Ctoa150󰀃C

Note󰀌The‘‘AbsoluteMaximumRatings’’arethosevaluesbeyondwhichthesafetyofthedevicecannotbeguaran-teed󰀟Thedeviceshouldnotbeoperatedattheselimits󰀟theparametricvaluesdefinedinthe‘‘ElectricalCharacteristics’’tablearenotguaranteedattheabsolutemaximumratings󰀟The‘‘RecommendedOperatingConditions’’tablewilldefinetheconditionsforactualdeviceoperation󰀟RecommendedOperatingConditions

SymbolVCCVIHVILIOHIOLTA

Parameter

SupplyVoltage

HighLevelInputVoltageLowLevelInputVoltageHighLevelOutputCurrentLowLevelOutputCurrentFreeAirOperatingTemperature

0Min4󰀟752

0󰀟8

b5󰀟2

Nom5

Max5󰀟25

UnitsVVVmAmA

2470

󰀃C

’LS465(’LS95A)and’LS467(’LS97A)ElectricalCharacteristics

overrecommendedoperatingfreeairtemperaturerange(unlessotherwisenoted)SymbolVIVOHVOL

ParameterInputClampVoltageHighLevelOutputVoltage

LowLevelOutputVoltage

Conditions

VCCeMin󰀷IIeb18mAVCCeMin󰀷IOHeMaxVILeMax󰀷VIHeMinVCCeMin󰀷IOLeMaxVILeMax󰀷VIHeMinIOLe12mA󰀷VCCeMin

IIIIHIIL

InputCurrent󰀁MaxInputVoltage

HighLevelInputCurrentLowLevelInputCurrent

VCCeMax󰀷VIe7VVCCeMax󰀷VIe2󰀟7VVCCeMax

VIe0󰀟5VVIe0󰀟4V

VCCeMax󰀷VOe2󰀟4VVIHeMin󰀷VILeMaxVCCeMax󰀷VOe0󰀟4VVIHeMin󰀷VILeMaxVCCeMax(Note2)

VCCeMax(Note3)

A(Note3)A(Note4)GIOZH

Off-StateOutputCurrentwithHighLevelOutputVoltageAppliedOff-StateOutputCurrentwithLowLevelOutputVoltageAppliedShortCircuitOutputCurrentSupplyCurrent

2󰀟7

0󰀟50󰀟40󰀟120

b20b50b50

Min

Typ(Note1)

Max

b1󰀟5

UnitsVV

V

mAmA

mA

20mA

IOZL

b20mA

IOSICC

b20b100mAmA

1626

Note1󰀌AlltypicalsareatVCCe5V󰀷TAe25󰀃C󰀟

Note2󰀌Notmorethanoneoutputshouldbeshortedatatime󰀷andthedurationshouldnotexceedonesecond󰀟Note3󰀌BothGinputsareat2V󰀟Note4󰀌BothGinputsareat0󰀟4V󰀟

2

’LS465and’LS467SwitchingCharacteristics

VCCe5V󰀷TAe25󰀃C

RLe667X

Symbol

Parameter

CLe50pFMin

tPLHtPHLtPZHtPZLtPHZtPLZ

Note1󰀌CLe5pF󰀟

CLe150pFMin

Max203042

Units

Max162825302027

PropagationDelayTimeLowtoHighLevelOutputPropagationDelayTimeHightoLowLevelOutputOutputEnableTimetoHighLevelOutputOutputEnableTimetoLowLevelOutput

OutputDisableTime

fromHighLevelOutput(Note1)OutputDisableTime

fromLowLevelOutput(Note1)

nsnsnsnsnsns

’LS466(’LS96A)and’LS468(’LS98A)ElectricalCharacteristics

overrecommendedoperatingfreeairtemperaturerange(unlessotherwisenoted)SymbolVIVOHVOL

ParameterInputClampVoltageHighLevelOutputVoltage

LowLevelOutputVoltage

Conditions

VCCeMin󰀷IIeb18mAVCCeMin󰀷IOHeMaxVILeMax󰀷VIHeMinVCCeMin󰀷IOLeMaxVILeMax󰀷VIHeMinIOLe12mA󰀷VCCeMin

IIIIHIIL

InputCurrent󰀁MaxInputVoltage

HighLevelInputCurrentLowLevelInputCurrent

VCCeMax󰀷VIe7VVCCeMax󰀷VIe2󰀟7VVCCeMax

VIe0󰀟5VVIe0󰀟4V

VCCeMax󰀷VOe2󰀟4VVIHeMin󰀷VILeMaxVCCeMax󰀷VOe0󰀟4VVIHeMin󰀷VILeMaxVCCeMax(Note3)

VCCeMax(Note5)

A(Note4)A(Note5)GIOZH

Off-StateOutputCurrentwithHighLevelOutputVoltageAppliedOff-StateOutputCurrentwithLowLevelOutputVoltageAppliedShortCircuitOutputCurrentSupplyCurrent

2󰀟7

0󰀟50󰀟40󰀟120

b20b50b50

Min

Typ(Note2)

Max

b1󰀟5

UnitsVVV

mAmA

mA

20mA

IOZL

b20mA

IOSICC

b20b100mAmA

1321

Note2󰀌AlltypicalsareatVCCe5V󰀷TAe25󰀃C󰀟

Note3󰀌Notmorethanoneoutputshouldbeshortedatatime󰀷andthedurationshouldnotexceedonesecond󰀟Note4󰀌BothGinputsareat2V󰀟Note5󰀌BothGinputsareat0󰀟4V󰀟

3

’LS466and’LS468SwitchingCharacteristics

fortestwaveformsandoutputload󰀟VCCe5V󰀷TAe25󰀃C

RLe667X

Symbol

Parameter

CLe50pFMin

tPLHtPHLtPZHtPZLtPHZtPLZ

Note1󰀌CLe5pF󰀟

CLe150pFMin

Max16303045

Units

Max101715352027

PropagationDelayTimeLowtoHighLevelOutputPropagationDelayTimeHightoLowLevelOutputOutputEnableTimetoHighLevelOutputOutputEnableTimetoLowLevelOutput

OutputDisableTime

fromHighLevelOutput(Note1)OutputDisableTime

fromLowLevelOutput(Note1)

nsnsnsnsnsns

FunctionTables

LS465(LS95A)InputsG1HXLL

G2XHLL

AXXHL

OutputYHi-ZHi-ZHL

LS466(LS96A)InputsG1HXLL

G2XHLL

AXXHL

OutputYHi-ZHi-ZLH

LS467(LS97A)InputsGHLL

AXHL

OutputYHi-ZHL

LS468(LS98A)InputsGHLL

AXHL

OutputYHi-ZLH

HeHighLogicLevelLeLowLogicLevel

XeEitherHighorLowLogicLevelHi-ZeHighImpedance(Off)State

4

PhysicalDimensionsinches(millimeters)

20-LeadWideSmallOutlineMoldedPackage(M)

OrderNumbersDM74LS465WM󰁋DM81LS95AWM󰀷DM74LS466WM󰁋DM81LS96AWM󰀷

DM74LS467WM󰁋DM81LS97AWMorDM74LS468WM󰁋DM81LS98AWM

NSPackageNumberM20B

5

DM74LS465(DM81LS95A)󰁋DM74LS466(DM81LS96A)󰁋DM74LS467(DM81LS97A)󰁋DM74LS468(DM81LS98A)TRI-STATEOctalBufferPhysicalDimensionsinches(millimeters)(Continued)

20-LeadMoldedDual-In-LinePackage(N)

OrderNumbersDM74LS465N󰁋DM81LS95AN󰀷DM74LS466N󰁋DM81LS96AN󰀷

DM74LS467N󰁋DM81LS97ANorDM74LS468N󰁋DM81LS98AN

NSPackageNumberN20A

LIFESUPPORTPOLICY

NATIONAL’SPRODUCTSARENOTAUTHORIZEDFORUSEASCRITICALCOMPONENTSINLIFESUPPORTDEVICESORSYSTEMSWITHOUTTHEEXPRESSWRITTENAPPROVALOFTHEPRESIDENTOFNATIONALSEMICONDUCTORCORPORATION󰀟Asusedherein󰀌1󰀟Lifesupportdevicesorsystemsaredevicesorsystemswhich󰀷(a)areintendedforsurgicalimplantintothebody󰀷or(b)supportorsustainlife󰀷andwhosefailuretoperform󰀷whenproperlyusedinaccordancewithinstructionsforuseprovidedinthelabeling󰀷canbereasonablyexpectedtoresultinasignificantinjurytotheuser󰀟

NationalSemiconductorCorporation1111WestBardinRoad2󰀟Acriticalcomponentisanycomponentofalifesupportdeviceorsystemwhosefailuretoperformcanbereasonablyexpectedtocausethefailureofthelifesupportdeviceorsystem󰀷ortoaffectitssafetyoreffectiveness󰀟

NationalSemiconductorEuropeFax󰀌(a49)0-180-5308586NationalSemiconductorLtd󰀟13thFloor󰀷StraightBlock󰀷NationalSemiconductorJapanLtd󰀟Tel󰀌81-043-299-2309