电路中OE该如何设计,直接上图方式是否可以,另外其他引脚是否有需要改正的地方,谢谢~
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如果你想在上电时保持高阻抗状态,OE引脚需要通过一个电阻拉低,在上电完成后再把OE拉高。如果不关心上电时的I/O口状态,OE引脚可以直接接VCCA,也可以通过电阻接VCCA。