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SCL2
SDA2
SCL1
SDA1
V
REF1
地
V
REF2
8
7
6
5
1
2
3
4
SW
SW
EN
PCA9306
dualbidirectionali2cbusandsmbusvoltage-leveltranslator
SCPS113–OCTOBER2004–REVISEDAPRIL2005
FUNCTIONTABLE
输入
TRANSLATORFUNCTION
EN
(1)
hscl1=scl2,sda1=sda2
LDisconnect
(1)eniscontrolledbythev
REF2
logiclevelsandshouldbeatleast1VhigherthanV
REF1
forbest
translatoroperation.
logicdiagram(positivelogic)
3