www.德州仪器.com
特性
pw pACKAGE
(t运算 视图)
1
2
3
4
8
7
6
5
1OE
1A
1B
地
V
CC
2OE
2B
2A
描述/orderinginformation
SN74CB3Q3305
DUALFETBUSSWITCH
2.5-v/3.3-vlow-voltagehigh-bandwidthbusswitch
SCDS141A–OCTOBER2003–REVISEDAPRIL2005
•
DataandControlInputsProvideUndershoot
ClampDiodes
•
高-bandwidthdatapath(upto500mhz
(1)
)
•
lowpowerconsumption(i
CC
=0.25matyp)
•
5-vtoleranti/oswithdevicepoweredupor
PoweredDown
•
V
CC
operatingrangefrom2.3vto3.6v
•
lowandflaton-stateresistance(r
在
)
•
datai/ossupport0-to5-vsignalinglevels
characteristicsoveroperatingrange(0.8v,1.2v,1.5v,1.8v,2.5v,3.3v,5v)
(r
在
=3
Ω
典型值)
•
ControlInputsCanBeDrivenbyTTLor
•
栏杆-至-railswitchingondatai/oports5-v/3.3-vcmosoutputs
–0-to5-vswitchingwith3.3-vv
CC
•
I
止
supportspartial-电源-downmode
运作
–0-to3.3-vswitchingwith2.5-vv
CC
•
获得-upperformanceexceeds100maper
•
bidirectionaldataflowwithnear-零
jesd78,classii
PropagationDelay
•
ESDPerformanceTestedPerJESD22
•
lowinput/outputcapacitanceminimizes
loadingandsignaldistortion–2000-vhuman-bodymodel
(c
io(止)
=3.5pftyp)(a114-b,classii)
•
fastswitchingfrequency(f
OE
=20mhzmax)–1000-vcharged-devicemodel(c101)
•
SupportsBothDigitalandAnalog
(1)foradditionalinformationregardingtheperformance
产品:usbinterface,差别的
characteristicsofthecb3qfamily,refertothetiapplication
signalinterface,busisolation,低-扭曲量
report,
cbt-c,cb3t,andcb3qsignal-switchfamilies
,
literaturenumberscda008.
SignalGating
thesn74cb3q3305isahigh-bandwidthfetbusswitchutilizingachargepumptoelevatethegatevoltageof
thepasstransistor,providingalowandflaton-stateresistance(r
在
).thelowandflaton-stateresistanceallows
forminimalpropagationdelayandsupportsrail-至-railswitchingonthedatainput/输出(i/o)端口.thedevice
alsofeatureslowdatai/ocapacitancetominimizecapacitiveloadingandsignaldistortiononthedatabus.
specificallydesignedtosupporthigh-bandwidthapplications,thesn74cb3q3305providesanoptimized
interfacesolutionideallysuitedforbroadbandcommunications,networking,anddata-intensivecomputing
系统.
thesn74cb3q3305isorganizedastwo1-bitswitcheswithseparateoutput-使能(1oe,2oe)输入.itcan
beusedastwo1-bitbusswitchesorasone2-bitbusswitch.whenoeishigh,theassociated1-bitbusswitchis
onandtheaportisconnectedtothebport,allowingbidirectionaldataflowbetweenports.whenoeislow,这
associated1-bitbusswitchisoffandahigh-impedancestateexistsbetweentheaandbports.
ORDERINGINFORMATION
T
一个
包装
(1)
orderablepartnumbertop-sidemarking
TubeSN74CB3Q3305PW
–40°Cto85°CTSSOP–PWBU305
TapeandreelSN74CB3Q3305PWR
(1)packagedrawings,standardpackingquantities,thermaldata,符号化,andpcbdesignguidelinesareavailableat
www.德州仪器.com/sc/包装.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2003–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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