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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1034973/sn74avc4t774-difference-between-avc-and-avch-level-translators
您好！
请问 SN74AVC 和 SN74AVCH 电平转换器之间的区别。 即 SN74AVCH1T45 和 SN74AVC1T45
"H"表示总线保持输入。 请参阅应用报告 《使用总线保持电路避免输入悬空的系统注意事项》和视频《了解电平转换器的总线保持功能》。
