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21ic
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在电路图中,如何画好原理图?
有的原理图工具允许给这种管脚设定一个“NC”类型的属性,这些管脚将被永久地用一个小“x”来标记。你也可以给它们一个独特的管脚名字NC1、NC2等等,就像在原理图上显示的那样。虽然原理图允许管脚重名,但我建议最好给每个不同的管脚不同的名字。
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