电子技术-芯片资料-74HC4543.pdf

TL/F/5128MM54HC4543/MM74HC4543 BCD-to-7 SegmentLatch/Decoder/Driver for Liquid Crystal DisplaysJanuary 1988MM54HC4543/MM74HC4543BCD-to-7 Segment Latch/Decoder/Driverfor Liquid Crystal DisplaysGeneral DescriptionTheMM54HC4543/MM74HC4543BCD-to-7segmentlatch/decoder/driver utilize advanced silicon-gate CMOStechnology,and can be used either as a high speed decod-er or as a display driver.This circuit contains a 4-bit latch,BCD-to-7 segment decoder,and 7 output drivers.Data onthe input pins flow through to the output when the LATCHENABLE(LE)is high and is latched on the high to low tran-sition of the LE input.The PHASE input(PH)controls thepolarity of the 7 segment outputs.When PH is low the out-puts are true 7 segment,and when PH is high the outputsare inverted 7 segment.When the PHASE input is driven bya liquid crystal display(LCD)backplane waveform the seg-ment pins output the correct segment waveform for properLCD AC drive voltages.In addition a BLANKING INPUT(Bl)is provided,which willblank the display.The MM54HC4543/MM74HC4543 are functionally and pin-out equivalent to the CD4543BC/CD4543BM and theMC14543BA/MC14543BC.All inputs are protected fromdamage due to static discharge by diodes to VCCandground.FeaturesYTypical propagation delay:60 nsYSupply voltage range:26VYMaximum input current:1 mAYMaximum quiescent supply current:80 mA(74HC)YDisplay blankingYLow dynamic power consumptionConnection DiagramDual-In-Line PackageTL/F/51281Top ViewOrder Number MM54HC4543 or MM74HC4543Display FormatTL/F/51282Truth TableInputsOutputsLE Bl Ph*D C B AabcdefgDisplayXHLXXXXLLLLLLLBlankHLLLLLLH H H H H HL0HLLLLLHLH HLLLL1HLLLLHLH HLH HLH2HLLLLH H H H H HLLH3HLLLHLLLH HLLH H4HLLLHLH HLH HLH H5HLLLH HLHLH H H H H6HLLLH H H H H HLLLL7HLLHLLLH H H H H H H8HLLHLLH H H H HLH H9HLLHLHLLLLLLLLBlankHLLHLH HLLLLLLLBlankHLLH HLLLLLLLLLBlankHLLH HLHLLLLLLLBlankHLLH H HLLLLLLLLBlankHLLH H H HLLLLLLLBlankLLLXXXX*Inverse of OutputDisplayHCombinationsasAboveaboveX dont careesame as above combinations*efor liquid crystal readouts,apply a square wave to Ph.*edepends upon the BCD code previously applied when LEHC1995 National Semiconductor CorporationRRD-B30M105/Printed in U.S.A.Absolute Maximum Ratings(Notes 1&2)If Military/Aerospace specified devices are required,pleasecontacttheNationalSemiconductorSalesOffice/Distributors for availability and specifications.Supply Voltage(VCC)b0.5 toa7.0VDC Input Voltage(VIN)b1.5 to VCCa1.5VDC Output Voltage(VOUT)b0.5 to VCCa0.5VClamp Diode Current(IIK,IOK)g20 mADC Output Current,per pin(IOUT)g25 mADC VCCor GND Current,per pin(ICC)g50 mAStorage Temperature Range(TSTG)b65C toa150CPower Dissipation(PD)(Note 3)600 mWS.O.Package only500 mWLead Temp.(TL)(Soldering 10 seconds)260COperating ConditionsMinMaxUnitsSupply Voltage(VCC)26VDC Input or Output Voltage0VCCV(VIN,VOUT)Operating Temp.Range(TA)MM74HCb40a85CMM54HCb55a125CInput Rise or Fall TimesVCCe2.0V(tr,tf)1000nsVCCe4.5V500nsVCCe6.0V400nsDC Electrical Characteristics(Note 4)TAe25C74HC54HCSymbolParameterConditionsVCCTAeb40 to 85CTAeb55 to 125CUnitsTypGuaranteed LimitsVIHMinimum High Level2.0V1.51.51.5VInput Voltage4.5V3.153.153.15V6.0V4.24.24.2VVILMaximum Low Level2.0V0.50.50.5VInput Voltage*4.5V1.351.351.35V6.0V1.81.81.8VVOHMinimum High LevelVINeVIHor VILOutput VoltagelIOUTls20 mA2.0V2.01.91.91.9V4.5V4.54.44.44.4V6.0V6.05.95.95.9VVINeVIHor VILlIOUTls0.4 mA4.5V4.23.983.843.7VlIOUTls0.52 mA6.0V5.75.485.345.2VVOLMaximum Low LevelVINeVIHor VILOutput VoltagelIOUTls20 mA2.0V00.10.10.1V4.5V00.10.10.1V6.0V00.10.10.1VVINeVIHor VILlIOUTls0.4 mA4.5V0.20.260.330.4VlIOUTls0.52 mA6.0V0.20.260.330.4VIINMaximum InputVINeVCCor GND6.0Vg0.1g1.0g1.0mACurrentICCMaximum QuiescentVINeVCCor GND6.0V8.080160mASupply CurrentIOUTe0 mANote 1:Absolute Maximum Ratings are those values beyond which damage to the device may occur.Note 2:Unless otherwise specified all voltages are referenced to ground.Note 3:Power Dissipation temperature derating plastic N package:b12 mW/C from 65C to 85C;ceramic J package:b12 mW/C from 100C to 125C.Note 4:For a power supply of 5Vg10%the worst case output voltages(VOH,and VOL)occur for HC at 4.5V.Thus the 4.5V values should be used whendesigning with this supply.Worst case VIHand VILoccur at VCCe5.5V and 4.5V respectively.(The VIHvalue at 5.5V is 3.85V.)The worst case leakage current(IIN,ICC,and IOZ)occur for CMOS at the higher voltage and so the 6.0V values should be used.*VILlimits are currently tested at 20%of VCC.The above VILspecification(30%of VCC)will be implemented no later than Q1,CY89.2AC Electrical CharacteristicsVCCe5V,TAe25C,CLe15 pF,tretfe6 nsSymbolParameterConditionsTypGuaranteedUnitsLimittPHL,tPLHMaximum Propagation60100nsDelay Data LE,BI,Ph to OutputtsMinimum Setup Time20nsLE to DatatHMinimum Hold Time10nsData to LEtWMinimum LE Pulse Width16nsAC Electrical CharacteristicsCLe50 pF,tretfe6 ns(unless otherwise specified)TAe25C74HC54HCSymbolParameterConditionsVCCTAeb40 to 85CTAeb55 to 125CUnitsTypGuaranteed LimitstPHL,tPLHMaximum Propagation2.0V300600760895nsDelay Data LE,Ph,BI to Output4.5V60120151179ns6.0V51102129152nstsMinimum Setup Time2.0V100125150nsLE to Data4.5V202530ns6.0V172125nstHMinimum Hold Time2.0V506375nsData to LE4.5V101315ns6.0V91113nstWMinimum LE Pulse Width2.0V80100120ns4.5V162024ns6.0V141720nsCPDPower DissipationpFCapacitance(Note 5)CINMaximum Input5101010pFCapacitanceNote 5:CPDdetermines the no load dynamic power consumption,PDeCPDVCC2faICCVCC,and the no load dynamic current consumption,ISeCPDVCCfaICC.3Logic DiagramTL/F/51283Typical Applications4 Digit LCD DisplayTL/F/512844Physical Dimensionsinches(millimeters)Dual-In-Line PackageOrder Number MM54HC4543J or MM74HC4543JNS Package J16A5MM54HC4543/MM74HC4543 BCD-to-7 SegmentLatch/Decoder/Driver for Liquid Crystal DisplaysPhysical Dimensionsinches(millimeters)(Continued)Order Number MM74HC4543NNS Package N16ELIFE 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.