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特性
SN54LVTH16244A . . . wd pACKAGE
SN74LVTH16244A . . . dgg, dgv, 或者 dl pACKAGE
(t运算 视图)
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1OE
1Y1
1Y2
地
1Y3
1Y4
V
CC
2Y1
2Y2
地
2Y3
2Y4
3Y1
3Y2
地
3Y3
3Y4
V
CC
4Y1
4Y2
地
4Y3
4Y4
4OE
2OE
1A1
1A2
地
1A3
1A4
V
CC
2A1
2A2
地
2A3
2A4
3A1
3A2
地
3A3
3A4
V
CC
4A1
4A2
地
4A3
4A4
3OE
描述/orderinginformation
sn54lvth16244a,sn74lvth16244a
3.3-vabt16-bitbuffers/驱动器
with3-stateoutputs
SCBS142Q–MAY1992–REVISEDOCTOBER2005
•
MembersoftheTexasInstruments
Widebus™Family
•
状态-的-这-artadvancedbicmos
技术(abt)designfor3.3-v
operationandlowstatic-电源
消耗
•
supportmixed-modesignaloperation
(5-vinputandoutputvoltageswith
3.3-vv
CC
)
•
SupportUnregulatedBatteryOperation
downto2.7v
•
TypicalV
OLP
(outputgroundbounce)
<0.8vatv
CC
=3.3v,t
一个
=25
°
C
•
I
止
andpower-up3-statesupporthot
嵌入
•
BusHoldonDataInputsEliminatestheNeed
forexternalpullup/pulldownresistors
•
获得-upperformanceexceeds500ma
PerJESD17
•
ESDProtectionExceedsJESD22
–2000-vhuman-bodymodel(a114-一个)
–200-vmachinemodel(a115-一个)
这'lvth16244adevicesare16-bitbuffersandlinedriversdesignedforlow-电压(3.3-v)v
CC
运作,但是
withthecapabilitytoprovideattlinterfacetoa5-vsystemenvironment.thesedevicescanbeusedasfour
4-bitbuffers,two8-bitbuffers,orone16-bitbuffer.thesedevicesprovidetrueoutputsandsymmetrical
起作用的-lowoutput-使能(oe)输入.
activebus-holdcircuitryholdsunusedorundriveninputsatavalidlogicstate.useofpulluporpulldownresistors
withthebus-holdcircuitryisnotrecommended.
WhenV
CC
isbetween0and1.5v,thedevicesareinthehigh-impedancestateduringpoweruporpowerdown.
不管怎样,toensurethehigh-impedancestateabove1.5v,oeshouldbetiedtov
CC
throughapullupresistor;
theminimumvalueoftheresistorisdeterminedbythecurrent-sinkingcapabilityofthedriver.
thesedevicesarefullyspecifiedforhot-insertionapplicationsusingi
止
andpower-up3-状态.thei
止
电路系统
disablestheoutputs,preventingdamagingcurrentbackflowthroughthedeviceswhentheyarepowereddown.
thepower-up3-statecircuitryplacestheoutputsinthehigh-impedancestateduringpowerupandpowerdown,
whichpreventsdriverconflict.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
widebusisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©1992–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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