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SN74LVC1G3157可以实现IO隔断功能吗?

Other Parts Discussed in Thread: SN74LVC1G3157, TMUX1574

我们的设计中,需要实现对一个IO的通断控制,由于现设计中已经大量使用了SN74LVC1G3157芯片,所有想用它实现。

把需要隔断的IO连接到B2,B1悬空,S固定接SN74LVC1G3157的VCC到3.3V,当VCC没有上电时,A输出端能实现高阻隔断,VCC上电后A直接输出B2的值这个功能吗?