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CMOS的NOR门和NAND门
首先考虑NMOS部分,如果其中一个NMOS门是高电平,输出必须保持低电平。如下图所示。 其次, PMOS部分,如果A为高,B为高,或者A、B均为高时,PMOS部分必须处于关断的状态。而且,如果A和B均为低时,PMOS部分必须为ON的状态。 如下图所示,即满足以上的要求。
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