The Negative-AND Gate

A Negative-AND gate functions the same as an AND gate with all its inputs inverted (connected through NOT gates).  In keeping with standard gate symbol convention, these inverted inputs are

signi¯ed by bubbles. Contrary to most peoples' ¯rst instinct, the logical behavior of a Negative-AND

gate is not the same as a NAND gate. Its truth table, actually, is identical to a NOR gate:

2-input Negative-AND gate

2 input negative AND gate
 A  B  Output
0 0 1
0 1 0
1 0 0
1 1 0

Equivalent gate circuits

2 input equivalent gate ciruits

Keywords : Digital, Logic, Electronic, Algebra, Gates, 2input, AND-gate
Writer : delon  |
15 Jul 2006 Sat   
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