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特点
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oe
1Q
1D
2D
2Q
3Q
3D
4D
4Q
地
v
抄送
8Q
8D
7D
7Q
6Q
6D
5D
5Q
clk
SN54LVC374A . . . j 或 w p组件
SN74LVC374A . . . db, dgv, dw, n, ns,
或 pw p组件
(top 查看)
SN54LVC374A . . . fk p组件
(top 查看)
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9 10 11 12 13
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5
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8
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1D
1Q
oe
5Q
5D
8Q
4Q
地
clk
v
抄送
8D
7D
7Q
6Q
6D
SN74LVC374A . . . rgy p组件
(top 查看)
1 20
10 11
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5
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8Q
8D
7D
7Q
6Q
6D
5D
5Q
1Q
1D
2D
2Q
3Q
3D
4D
4Q
clk
v
地
抄送
oe
2D
2Q
3Q
3D
4D
描述/orderinginformation
sn54lvc374a,sn74lvc374a
octaledge-triggeredd-typeflip-拖鞋
with3-stateoutputs
SCAS296N–JANUARY1993–REVISEDMAY2005
•
我
关
supportspartial-电源-downmode
操作
•
operatefrom1.65vto3.6v
•
门闩-upperformanceexceeds250maper
•
inputsacceptvoltagesto5.5v
JESD17
•
maxt
pd
of6.5nsat3.3v
•
ESDProtectionExceedsJESD22
•
TypicalV
olp
(outputgroundbounce)
–2000-vhuman-bodymodel(a114-一个)
&指示灯;0.8vatv
抄送
=3.3v,t
一个
=25°C
–200-vmachinemodel(a115-一个)
•
TypicalV
OHV
(outputv
哦
下冲)
>2vatv
抄送
=3.3v,t
一个
=25°c–1000-vcharged-devicemodel(c101)
•
supportmixed-modesignaloperationon
allports(5-vinput/输出电压
with3.3-vv
抄送
)
thesn54lvc374aoctaledge-triggeredd-typeflip-flopisdesignedfor2.7-vto3.6-vv
抄送
操作,和
sn74lvc374aoctaledge-triggeredd-typeflip-flopisdesignedfor1.65-vto3.6-vv
抄送
操作.
thesedevicesfeature3-stateoutputsdesignedspecificallyfordrivinghighlycapacitiveorrelatively
低-impedanceloads.thesedevicesareparticularlysuitableforimplementingbufferregisters,输入/输出(我/o)
端口,bidirectionalbusdrivers,andworkingregisters.
onthepositivetransitionoftheclock(clk)输入,theqoutputsaresettothelogiclevelssetupatthedata(d)
输入.
abufferedoutput-启用(oe)inputcanbeusedtoplacetheeightoutputsineitheranormallogicstate(highor
lowlogiclevels)orthehigh-impedancestate.inthehigh-impedancestate,theoutputsneitherloadnordrivethe
buslinessignificantly.thehigh-impedancestateandincreaseddriveprovidethecapabilitytodrivebuslines
withoutinterfaceorpullupcomponents.
oedoesnotaffectinternaloperationsofthelatch.olddatacanberetainedornewdatacanbeenteredwhile
theoutputsareinthehigh-impedancestate.
inputscanbedrivenfromeither3.3-vor5-vdevices.thisfeatureallowstheuseofthesedevicesastranslators
inamixed3.3-v/5-vsystemenvironment.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©1993–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
onproductscomplianttomil-prf-38535,allparametersare
instrumentsstandardwarranty.productionprocessingdoesnot
testedunlessotherwisenoted.onallotherproducts,生产
必要包括测试所有参数.
processingdoesnotnecessarilyincludetestingofallparameters.
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