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特性
dct 或者 dcu pACKAGE
(t运算 视图)
1
2
3
4
8
7
6
5
地
V
REF1
SCL1
SDA1
EN
V
REF2
SCL2
SDA2
PCA9306
dualbidirectionali2cbusandsmbusvoltage-leveltranslator
SCPS113–OCTOBER2004–REVISEDAPRIL2005
•
锁-向上-freeoperationforisolationwhen
EN=Low
•
2-bitbidirectionaltranslatorforsdaandscl
linesinmixed-modei
2
CApplications
•
流动-throughpinoutforeaseofprinted
CircuitBoardTraceRouting
•
I
2
CandSMBusCompatible
•
获得-upperformanceexceeds100maper
•
lessthan1.5-nsmaximumpropagationdelay
jesd78,classii
toaccommodatestandard-modeand
快-modei
2
CDevicesandMultipleMasters
•
ESDProtectionExceedsJESD22
•
allowsvoltage-leveltranslatorbetween–2000-vhuman-bodymodel(a114-一个)
–1.2-vv
REF1
and2.5-v,3.3-v,or5-vv
REF2
–200-vmachinemodel(a115-一个)
–1.8-vv
REF1
and3.3-vor5-vv
REF2
–1000-vcharged-devicemodel(c101)
–2.5-vv
REF1
and5-vv
REF2
–3.3-vv
REF1
and5-vv
REF2
•
ProvidesBidirectionalVoltageTranslation
WithNoDirectionPin
•
low3.5-
Ω
在-stateconnectionbetween
InputandOutputPortsProvidesLessSignal
扭曲量
•
打开-draini
2
ci/oports(scl1,sda1,scl2,
andsda2)
•
5-vtoleranti
2
ci/oportstosupport
mixed-modesignaloperation
•
高-impedancescl1,sda1,scl2,和
SDA2PinsforEN=Low
PINSYMBOLFUNCTION
1gndground,0v
2V
REF1
低-电压-sidereferencesupplyvoltageforscl1andsda1
3scl1serialclock,低-voltageside.connecttov
REF1
throughapullupresistor.
4sda1serialdata,低-voltageside.connecttov
REF1
throughapullupresistor.
5sda2serialdata,高-voltageside.connecttov
REF2
throughapullupresistor.
6scl2serialclock,高-voltageside.connecttov
REF2
throughapullupresistor.
7V
REF2
高-电压-sidereferencesupplyvoltageforscl2andsda2
switchenableinput.connectedtov
REF2
andpulledupthroughahigh
8EN
电阻.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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