1. 不用引脚怎么处理
建议悬空的引脚接地。Normally, advise to have the floating pins to gnd, but since TXS will have the IO ports pulled high, this should be fine to leave it floating or could be connected to corresponding supply voltages if not going to be used.
器件：TXS0104E
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转载自www.cnblogs.com/dongshenscut/p/12508824.html
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