Tạo cổng cơ bản bằng cách ghép cổng NAND
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Tên cổng
Ghép cổng
Cổng ghép
Toán
Cổng nghịch
Q
=
A
⋅
A
‾
=
A
‾
Cổng thuận
Q
=
A
⋅
A
‾
‾
=
A
Cổng NAND
Q
=
A
⋅
B
‾
Cổng AND
Q
=
A
⋅
B
‾
‾
=
A
⋅
B
Cổng OR
Q
=
(
A
⋅
A
‾
)
⋅
(
B
⋅
B
‾
)
‾
=
A
+
B
Cổng NOR
(
A
⋅
A
‾
)
⋅
(
B
⋅
B
‾
)
‾
‾
=
(
A
‾
)
⋅
(
B
‾
)
‾
=
A
‾
‾
+
B
‾
‾
=
A
‾
+
B
‾
Category
:
Ghép cổng
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