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TXS0102: 用作UART信号的IO隔离,避免倒灌

Part Number: TXS0102

TXS0102接UART信号,VCCA和VCCB都是3.3V,VCCA是常供电,VCCB休眠时断电,休眠时VCCB这边的IO是否会有电?