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411 REFERENCE · Wikibooks

Digital Electronics/Logic Gates/Basic Logic Gates Summary

Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.

Digital Electronics/Logic Gates Summary Logic Gates Summary The table below summarize all the Basic Digital Gates and their characteristics {| class="wikitable" width=100% align=left !Basic Logic Gates !! Symbol !! Mathmatical Formula !! Truth Table |- | Buffer || 100px || Q = A || A Q 0 0 1 1 |- | NOT || 100px || Q = NOT A || A Q 0 1 1 0 |- | AND || 100px|Left|AND Gate || Q = A . B || A B Q 0 0 0 0 1 0 1 0 0 1 1 1 |- | NAND || 100px|Left|AND Gate || Q = NOT (A . B) || A B Q 0 0 1 0 1 1 1 0 1 1 1 0 |- | OR || 100px || Q = A + B || A B Q 0 0 0 0 1 1 1 0 1 1 1 1 |- | NOR || 100px || Q = NOT (A + B) || A B Q 0 0 1 0 1 0 1 0 0 1 1 0 |- | XOR || 100px || Q = (A + B) . NOT (A . B) || A B Q 0 0 0 0 1 1 1 0 1 1 1 0 |- | XNOR || 100px || Q = NOT ( (A + B) . NOT (A . B) ) || A B Q 0 0 1 0 1 0 1 0 0 1 1 1 |- |}