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APPLICATIONINFORMATION
V
CC1
V
CC1
V
CC2
系统-1 系统-2
V
CC1
1
2
3
4
8
7
6
5
V
CC2
V
CC2
SN74AVC2T45
双-bitdual-supplybustransceiver
withconfigurablevoltagetranslationand3-stateoutputs
SCES531F–DECEMBER2003–REVISEDMAY2005
Figure12isanexamplecircuitofthesn74avc2t45usedinabidirectionallogiclevel-shiftingapplication.
PINNAMEFUNCTIONDESCRIPTION
1V
CCA
V
CC1
系统-1supplyvoltage(1.2vto3.6v)
2A1OUT1OutputleveldependsonV
CC1
电压.
3A2OUT2OutputleveldependsonV
CC1
电压.
4GNDGNDDeviceGND
5dirdirthegnd(低-水平的)determinesb-porttoa-portdirection.
6B2IN2InputthresholdvaluedependsonV
CC2
电压.
7B1IN1InputthresholdvaluedependsonV
CC2
电压.
8V
CCB
V
CC2
系统-2supplyvoltage(1.2vto3.6v)
figure12.bidirectionallogiclevel-shiftingapplication
14