< Fundamental Digital Electronics

From previous chapters there are 8 fundamental Digital Logic Gates

Basic Logic GatesSymbolMathematical FormulaTruth Table
BufferQ = AA Q
0 0
1 1
NOTQ = NOT AA Q
0 1
1 0
AND
AND Gate
Q = A . BA B Q
0 0 0
0 1 0
1 0 0
1 1 1
NAND
AND Gate
Q = NOT(A . B)A B Q
0 0 1
0 1 1
1 0 1
1 1 0
ORQ = A + BA B Q
0 0 0
0 1 1
1 0 1
1 1 1
NORQ = NOT(A + B)A B Q
0 0 1
0 1 0
1 0 0
1 1 0
XORQ = A + BA B Q
0 0 0
0 1 1
1 0 1
1 1 0
XNORQ = NOT(A + B)A B Q
0 0 1
0 1 0
1 0 0
1 1 1
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