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SL74LS14SystemLogicSemiconductorSLSHexSchmitt-TriggerInverterThisdevicecontainssixindependentgateseachofwhichperformsthelogicINVERTfunction.Eachinputhashysteresiswhichincreasesthenoiseimmunityandtransformsaslowlychanginginputsignaltoafastchanging,jitterfreeoutput.ORDERINGINFORMATIONSL74LS14NPlasticSL74LS14DSOICTA=0°to70°CforallpackagesLOGICDIAGRAMPIN14=VCCPIN7=GNDPINASSIGNMENTFUNCTIONTABLEInputsOutputAYLHHLSL74LS14SystemLogicSemiconductorSLSMAXIMUMRATINGS*SymbolParameterValueUnitVCCSupplyVoltage7.0VVINInputVoltage7.0VVOUTOutputVoltage5.5VTstgStorageTemperatureRange-65to+150°C*MaximumRatingsarethosevaluesbeyondwhichdamagetothedevicemayoccur.FunctionaloperationshouldberestrictedtotheRecommendedOperatingConditions.RECOMMENDEDOPERATINGCONDITIONSSymbolParameterMinMaxUnitVCCSupplyVoltage4.755.25VIOHHighLevelOutputCurrent-15mAIOLLowLevelOutputCurrent24mATAAmbientTemperatureRange0+70°CDCELECTRICALCHARACTERISTICSoverfulloperatingconditionsGuaranteedLimitSymbolParameterTestConditionsMinMaxUnitVT+-Positive-GoingInputThresholdVoltageVCC=5V0.51VVT--Negative-GoingInputThresholdVoltageVCC=5V1.41.9VVT+-VT-HysteresisVCC=5V0.4VVIKInputClampVoltageVCC=min,IIN=-18mA-1.5VVOHHighLevelOutputVoltageVCC=min,IOH=-0.4mA,VI=0.5V2.7VVOLLowLevelOutputVoltageVCC=min,IOL=4mAVI=1.9V0.4VVCC=min,IOL=8mAVI=1.9V0.5IIHHighLevelInputCurrentVCC=max,VIN=2.7V20μAVCC=max,VIN=7.0V0.1mAIILLowLevelInputCurrentVCC=max,VIN=0.4V-0.4mAIOOutputShortCircuitCurrentVCC=max,VO=0V(Note1)-20-100mAICCSupplyCurrentTotalwithoutputshighVCC=max16mATotalwithoutputslow21SL74LS14SystemLogicSemiconductorSLSNote1:Notmorethanoneoutputshouldbeshortedatatime,andthedurationshouldnotexceedonesecond.SL74LS14SystemLogicSemiconductorSLSACELECTRICALCHARACTERISTICS(TA=25°C,VCC=5.0V,CL=15pF,RL=2kΩ,tr=15ns,tf=6.0ns)SymbolParameterMinMaxUnittPLHPropagationDelay,InputAtoOutputY22nstPHLPropagationDelay,InputAtoOutputY22nsFigure1.SwitchingWaveformsNOTESA.CLincludesprobeandjigcapacitance.B.Alldiodesare1N916or1N3064.Figure2.TestCircuit