电子技术-芯片资料-7426.pdf

TL/F/6508DM5426/DM7426 Quad 2-Input NAND Gates with High Voltage Open-Collector OutputsJune 1989DM5426/DM7426 Quad 2-Input NAND Gateswith High Voltage Open-Collector OutputsGeneral DescriptionThis device contains four independent gates each of whichperforms the logic NAND function.The open-collector out-puts require external pull-up resistors for proper logical op-eration.Pull-Up Resistor EquationsRMAXeVO(Min)bVOHN1(IOH)aN2(IIH)RMINeVO(Max)bVOLIOLbN3(IIL)Where:N1(IOH)etotal maximum output high current for alloutputs tied to pull-up resistorN2(IIH)etotal maximum input high current for allinputs tied to pull-up resistorN3(IIL)etotal maximum input low current for allinputs tied to pull-up resistorConnection DiagramDual-In-Line PackageTL/F/65081Order Number DM5426J or DM7426NSee NS Package Number J14A or N14AFunction TableYeABInputsOutputABYLLHLHHHLHHHLHeHigh Logic LevelLeLow Logic LevelC1995 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 Voltage5.5VOutput Voltage15VOperating Free Air Temperature RangeDM54b55C toa125CDM740C 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 ConditionsSymbolParameterDM5426DM7426UnitsMinNomMaxMinNomMaxVCCSupply Voltage4.555.54.7555.25VVIHHigh Level Input Voltage22VVILLow Level Input Voltage0.80.8VVOHHigh Level Output Voltage1515VIOLLow Level Output Current1616mATAFree Air Operating Temperatureb55125070CElectrical Characteristicsover recommended operating free air temperature range(unless otherwise noted)SymbolParameterConditionsMinTypMaxUnits(Note 1)VIInput Clamp VoltageVCCeMin,IIe b12 mAb1.5VICEXHigh Level OutputVCCeMinVOe15V1000mACurrentVILeMaxVOe12V50VOLLow Level OutputVCCeMin,IOLeMax0.4VVoltageVIHeMinIIInput CurrentMaxVCCeMax,VIe5.5V1mAInput VoltageIIHHigh Level Input CurrentVCCeMax,VIe2.4V40mAIILLow Level Input CurrentVCCeMax,VIe0.4Vb1.6mAICCHSupply Current withVCCeMax48mAOutputs HighICCLSupply Current withVCCeMax1222mAOutputs LowSwitching Characteristicsat VCCe5V and TAe25C(See Section 1 for Test Waveforms and Output Load)SymbolParameterConditionsMinMaxUnitstPLHPropagation Delay TimeCLe15 pF24nsLow to High Level OutputRLe1 kX(tPLH)tPHLPropagation Delay Time17nsHigh to Low Level OutputNote 1:All typicals are at VCCe5V,TAe25C.2Physical Dimensionsinches(millimeters)14-Lead Ceramic Dual-In-Line Package(J)Order Number DM5426JNS Package Number J14A3DM5426/DM7426 Quad 2-Input NAND Gates with High Voltage Open-Collector OutputsPhysical Dimensionsinches(millimeters)(Continued)14-Lead Molded Dual-In-Line Package(N)Order Number DM7426NNS Package Number N14ALIFE 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.