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特点
描述/orderinginformation
SN74LVC32373A
32-bittransparentd-typelatch
with3-stateoutputs
SCES575–JUNE2004–REVISEDAUGUST2005
•
MemberoftheTexasInstrumentsWidebus+™
•
我
关
supportspartial-电源-downmode
FamilyOperation
•
operatesfrom1.65vto3.6v
•
supportsmixed-modesignaloperation(5-v
inputandoutputvoltageswith3.3-vv
抄送
)
•
inputsacceptvoltagesto5.5v
•
门闩-upperformanceexceeds100maper
•
maxt
pd
of4.2nsat3.3v
jesd78,classii
•
TypicalV
olp
(outputgroundbounce)&指示灯;0.8v
•
ESDProtectionExceedsJESD22
atV
抄送
=3.3v,t
一个
=25
°
c
–2000-vhuman-bodymodel(a114-一个)
•
TypicalV
OHV
(outputv
哦
下冲)>2vat
v
抄送
=3.3v,t
一个
=25
°
c–1000-vcharged-devicemodel(c101)
this32-bittransparentd-typelatchisdesignedfor1.65-vto3.6-vv
抄送
操作.
thesn74lvc32373aisparticularlysuitableforimplementingbufferregisters,我/oports,bidirectionalbusdrivers,
andworkingregisters.itcanbeusedasfour8-bitlatches,two16-bitlatches,orone32-bitlatch.whenthe
门闩-启用(乐)inputishigh,theqoutputsfollowthedata(d)输入.whenleistakenlow,theqoutputsare
latchedatthelevelssetupatthedinputs.
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.
thisdeviceisfullyspecifiedforpartial-电源-downapplicationsusingi
关
.thei
关
circuitrydisablestheoutputs,
preventingdamagingcurrentbackflowthroughthedevicewhenitispowereddown.
toensurethehigh-impedancestateduringpoweruporpowerdown,oeshouldbetiedtov
抄送
throughapullup
电阻;theminimumvalueoftheresistorisdeterminedbythecurrent-sinkingcapabilityofthedriver.
ORDERINGINFORMATION
t
一个
包装
(1)
orderablepartnumbertop-sidemarking
LFBGA–GKESN74LVC32373AGKER
–40
°
Cto85
°
CTapeandreelNC373A
lfbga–zke(铅-免费)sn74lvc32373azker
(1)packagedrawings,标准包装数量,thermaldata,符号化,andpcbdesignguidelinesareavailableat
www.ti.com/sc/包装.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
widebus+isatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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