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Tạo cổng NAND nhiều chân bằng cách ghép cổng NAND
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NAND 1 chân
Q
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A
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A
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{\displaystyle Q={\overline {A\cdot A}}={\overline {A}}}
NAND 2 chân
Q
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{\displaystyle Q={\overline {A\cdot B}}}
NAND 3 chân
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C
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{\displaystyle Q=({\overline {A\cdot B}})\cdot {\overline {C}}={\overline {A\cdot B\cdot C}}}
NAND 4 chân
Q
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{\displaystyle Q=({\overline {A\cdot B}})\cdot ({\overline {C\cdot D}})={\overline {A\cdot B\cdot C\cdot D}}}