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dgv 或 pw p组件
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1B1
1B2
1A
2B1
2B2
2A
地
v
抄送
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4B1
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3B1
3B2
3A
描述/orderinginformation
SN74CB3T3257
4-bit1-的-2fetmultiplexer/多路分解器
2.5-v/3.3-vlow-voltagebusswitchwith5-v-tolerantlevelshifter
SCDS149–OCTOBER2003–REVISEDMARCH2005
•
低功耗(我
抄送
=20
µ
amax)
•
OutputVoltageTranslationTracksV
抄送
•
v
抄送
operatingrangefrom2.3vto3.6v
•
supportsmixed-modesignaloperationonall
•
datai/ossupport0-to5-vsignalinglevels
datai/oports(0.8v,1.2v,1.5v,1.8v,2.5v,3.3v,5v)
–5-vinputdownto3.3-voutputlevelshift
•
ControlInputsCanBeDrivenbyTTLor
with3.3-vv
抄送
5-v/3.3-vcmosoutputs
–5-v/3.3-vinputdownto2.5-voutputlevel
•
我
关
supportspartial-电源-downmode
shiftwith2.5-vv
抄送
操作
•
5-v-toleranti/oswithdevicepoweredupor
•
门闩-upperformanceexceeds250maper
PoweredDownJESD17
•
bidirectionaldataflowwithnear-零
•
ESDPerformanceTestedPerJESD22
PropagationDelay
–2000-vhuman-bodymodel
•
lowon-stateresistance(右
开启
)特性(a114-b,classii)
(右
开启
=5
Ω
典型值)
–1000-vcharged-devicemodel(c101)
•
lowinput/outputcapacitanceminimizes
•
supportsdigitalapplications:水平
正在加载(c
io(关)
=5pftyp)
翻译,usbinterface,记忆
•
dataandcontrolinputsprovideundershootinterleaving,busisolation
ClampDiodes
•
idealforlow-powerportableequipment
thesn74cb3t3257isahigh-speedttl-compatiblefetmultiplexer/demultiplexerwithlowon-stateresistance
(右
开启
),allowingforminimalpropagationdelay.thedevicefullysupportsmixed-modesignaloperationonalldata
我/oportsbyprovidingvoltagetranslationthattracksv
抄送
.thesn74cb3t3257supportssystemsusing5-vttl,
3.3-vlvttl,and2.5-vcmosswitchingstandards,aswellasuser-definedswitchinglevels(seefigure1).
ORDERINGINFORMATION
t
一个
包装
(1)
orderablepartnumbertop-sidemarking
TubeSN74CB3T3257PW
TSSOP–PWKS257
–40
°
Cto85
°
CTapeandreelSN74CB3T3257PWR
TVSOP–DGVTapeandreelSN74CB3T3257DGVRKS257
(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.
productiondatainformationiscurrentasofpublicationdate.
copyright©2003–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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