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像这种SN74CBTLV3257的用传输门作为选择器的器件。我输入是1.8v，输出是否可以是3.3v, 上拉电阻是3.3v?
这是个模拟开关，如果开关导通，相对于一个电阻相连。那么这个时候输入输出口会相互影响哦
