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Tạo cổng cơ bản bằng cách ghép cổng NAND
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Edit
Tên cổng
Ghép cổng
Cổng ghép
Toán
Cổng nghịch
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{\displaystyle Q={\overline {A\cdot A}}={\overline {A}}}
Cổng thuận
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{\displaystyle Q={\overline {\overline {A\cdot A}}}=A}
Cổng NAND
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{\displaystyle Q={\overline {A\cdot B}}}
Cổng AND
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{\displaystyle Q={\overline {\overline {A\cdot B}}}=A\cdot B}
Cổng OR
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{\displaystyle Q={\overline {({\overline {A\cdot A}})\cdot ({\overline {B\cdot B}})}}=A+B}
Cổng NOR
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{\displaystyle {\overline {\overline {({\overline {A\cdot A}})\cdot ({\overline {B\cdot B}})}}}={\overline {({\overline {A}})\cdot ({\overline {B}})}}={\overline {\overline {A}}}+{\overline {\overline {B}}}={\overline {A}}+{\overline {B}}}