The output of a two input NAND gate is fed as input to a NOT gate. Write down the truth
table for the final output of the combination. Name the gate so formed. Draw its logical
symbol.
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and only goes “LOW” to logic level “0” when ANY of its inputs are at logic level “1”. The Logic NOR Gate is the reverse or “Complementary” form of the inclusive OR gate we have seen previously.
Logic NOR Gate Equivalent
2-input nor gate equivalent
The logic or Boolean expression given for a logic NOR gate is that for Logical Multiplication which it performs on the complements of the inputs. The Boolean expression for a logic NOR gate is denoted by a plus sign, ( + ) with a line or Overline, ( ‾‾ ) over the expression to signify the NOT or logical negation of the NOR gate giving us the Boolean expression of: A+B = Q.
Then we can define the operation of a 2-input digital logic NOR gate as being:
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