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TXB0104: TXB0104RUTR

Part Number: TXB0104
Other Parts Discussed in Thread: TXS0202

使用TXB0104RUTR做level shift,会影响1.8V端的信号拉不起来,请问这是怎么回事?下面波形是把TXB0104RUTR OE拉高和拉低的波形,把OE=L  1.8V端的波形正常, OE=H  1.8V端的波形异常  3.3V端是断开的

SCH.pdf