AbsoluteMaximumRatings(Note)

IfMilitary Aerospacespecifieddevicesarerequired pleasecontacttheNationalSemiconductorSalesOffice Distributorsforavailabilityandspecifications SupplyVoltageInputVoltage

7V7V

Note The‘‘AbsoluteMaximumRatings’’arethosevaluesbeyondwhichthesafetyofthedevicecannotbeguaran-teed Thedeviceshouldnotbeoperatedattheselimits Theparametricvaluesdefinedinthe‘‘ElectricalCharacteristics’’tablearenotguaranteedattheabsolutemaximumratings The‘‘RecommendedOperatingConditions’’tablewilldefinetheconditionsforactualdeviceoperation

OperatingFreeAirTemperatureRange

b55 Ctoa125 CDM54LSand54LS

DM74LS0 Ctoa70 CStorageTemperatureRange

b65 Ctoa150 C

RecommendedOperatingConditions

SymbolVCCVIHVILIOHIOLTA

Parameter

Min

SupplyVoltage

HighLevelInputVoltageLowLevelInputVoltageHighLevelOutputCurrentLowLevelOutputCurrentFreeAirOperatingTemperature

b55

DM54LS283

Nom5

Max5 5

Min4 752

0 7

b0 4

DM74LS283Nom5

Max5 25

UnitsVV

0 8

b0 4

4 52

VmAmA

4125

870

C

ElectricalCharacteristicsoverrecommendedoperatingfreeairtemperaturerange(unlessotherwisenoted)

SymbolVIVOHVOL

ParameterInputClampVoltageHighLevelOutput

Voltage

LowLevelOutputVoltage

Conditions

VCCeMin IIeb18mAVCCeMin IOHeMaxVILeMax VIHeMinVCCeMin IOLeMaxVILeMax VIHeMinIOLe4mA VCCeMin

IIIIHIILIOSICC1ICC2

InputCurrent MaxInputVoltageHighLevelInputCurrentLowLevelInputCurrentShortCircuitOutputCurrentSupplyCurrentSupplyCurrent

VCCeMaxVIe7VVCCeMaxVIe2 7VVCCeMaxVIe0 4VVCCeMax(Note2)

VCCeMax(Note3)VCCeMax(Note4)

DM54DM74DM54DM74DM74A BC0A BC0A BC0DM54DM74

b20b20

Min

Typ(Note1)

Max

b1 5

UnitsVV

2 52 7

3 43 40 250 350 25

0 40 50 40 20 14020

b0 8b0 4b100b100

V

mA

mA

mA

mAmAmA

1922

3439

Note1 AlltypicalsareatVCCe5V TAe25 C

Note2 Notmorethanoneoutputshouldbeshortedatatime andthedurationshouldnotexceedonesecond Note3 ICC1ismeasuredwithalloutputsopen allBinputslowandallotherinputsat4 5V orallinputsat4 5V Note4 ICC2ismeasuredwithalloutputsopenandallinputsgrounded

2