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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/1096592/sn74axc8t245-dir1-dir2-and-the-chip-enable-oe
大家好，我们 确认在方向端子dir1和dir2以及芯片启用/OE处需要上拉电阻器或下拉电阻器。
谢谢你。
标记
您可以将这些引脚直接连接到VCC或GND。
仅当您需要在通电过程中处于某个状态并且需要稍后从微控制器覆盖此状态时，才需要上拉/下拉。
