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SN54LVTH16244A . . . wd p组件
SN74LVTH16244A . . . dgg, dgv, 或 dl p组件
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1OE
1Y1
1Y2
地
1Y3
1Y4
v
抄送
2Y1
2Y2
地
2Y3
2Y4
3Y1
3Y2
地
3Y3
3Y4
v
抄送
4Y1
4Y2
地
4Y3
4Y4
4OE
2OE
1A1
1A2
地
1A3
1A4
v
抄送
2A1
2A2
地
2A3
2A4
3A1
3A2
地
3A3
3A4
v
抄送
4A1
4A2
地
4A3
4A4
3OE
描述/orderinginformation
sn54lvth16244a,sn74lvth16244a
3.3-vabt16-bitbuffers/驱动程序
with3-stateoutputs
SCBS142Q–MAY1992–REVISEDOCTOBER2005
•
MembersoftheTexasInstruments
Widebus™Family
•
州-的-这-artadvancedbicmos
技术(abt)designfor3.3-v
operationandlowstatic-电源
耗散
•
supportmixed-modesignaloperation
(5-vinputandoutputvoltageswith
3.3-vv
抄送
)
•
SupportUnregulatedBatteryOperation
downto2.7v
•
TypicalV
olp
(outputgroundbounce)
&指示灯;0.8vatv
抄送
=3.3v,t
一个
=25
°
c
•
我
关
andpower-up3-statesupporthot
插入
•
BusHoldonDataInputsEliminatestheNeed
forexternalpullup/pulldownresistors
•
门闩-upperformanceexceeds500ma
PerJESD17
•
ESDProtectionExceedsJESD22
–2000-vhuman-bodymodel(a114-一个)
–200-vmachinemodel(a115-一个)
这'lvth16244adevicesare16-bitbuffersandlinedriversdesignedforlow-电压(3.3-v)v
抄送
操作,但是
withthecapabilitytoprovideattlinterfacetoa5-vsystemenvironment.thesedevicescanbeusedasfour
4-bitbuffers,two8-bitbuffers,orone16-bitbuffer.thesedevicesprovidetrueoutputsandsymmetrical
活动-lowoutput-启用(oe)输入.
activebus-holdcircuitryholdsunusedorundriveninputsatavalidlogicstate.useofpulluporpulldownresistors
withthebus-holdcircuitryisnotrecommended.
WhenV
抄送
isbetween0and1.5v,thedevicesareinthehigh-impedancestateduringpoweruporpowerdown.
然而,toensurethehigh-impedancestateabove1.5v,oeshouldbetiedtov
抄送
throughapullupresistor;
theminimumvalueoftheresistorisdeterminedbythecurrent-sinkingcapabilityofthedriver.
thesedevicesarefullyspecifiedforhot-insertionapplicationsusingi
关
andpower-up3-州.thei
关
电路
disablestheoutputs,preventingdamagingcurrentbackflowthroughthedeviceswhentheyarepowereddown.
thepower-up3-statecircuitryplacestheoutputsinthehigh-impedancestateduringpowerupandpowerdown,
whichpreventsdriverconflict.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
widebusisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©1992–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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