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Portes lògiques
- 1. FUNCIONS Equacions lògiques Simbologia EUR Simbologia USA Circuit equivalent Taula de la veritat OR S= A+B A B S 0 0 0 0 1 0 1 0 0 1 1 1 AND S= A·B A B S 0 0 0 0 1 1 1 0 1 1 1 1 NOT S= A’ A S 0 1 1 0 NOR S= (A+B)’ A B S 0 0 1 0 1 1 1 0 1 1 1 0 NAND S= (A·B)’ A B S 0 0 1 0 1 0 1 0 0 1 1 0 EXOR S=A·B’+A’+B A B S 0 0 0 0 1 1 1 0 1 1 1 0
- 2. XNOR S=A·B’+A’·B’ A B S 0 0 1 0 1 0 1 0 0 1 1 1