Tabel - porti logice

PORTI LOGICE

Tipul portii

Simbol

Simbol dreptunghiular

Operatia logica

SI(AND SI( AND))

A·B

SAU(OR)

A+B     ̅  

NU(NOT NU(NOT))

� ·  

SI-NU (NAND)

� +  

SAU-NU (NOR) SAUEXCLUSIV (XOR) SAUEXCLUSIV NEGAT (XNOR)

    B � +  A ̅

�

�

�

A + B

Tabel de adevar INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A AND B 0 0 0 1

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A OR B 0 1 1 1

INPUT A 0 1

OUTPUT NOT A 1 0

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A NAND B 1 1 1 0

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A NORB 1 0 0 0

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A XORB 0 1 1 0

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A XNORB 1 0 0 1

PORTI LOGICE

Tipul portii

SI(AND)

SAU(OR) NU(NOT)

SI-NU (NAND)

Simbol

Simbol dreptunghiular

Operatia logica

A·B

A+B

Tabel de adevar INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A AND B 0 0 0 1

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A OR B 0 1 1 1

INPUT A 0 1

OUTPUT NOT A 1 0

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A NAND B 1 1 1 0

SAU-NU (NOR)

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A NORB 1 0 0 0

SAUEXCLUSIV (XOR)

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A XORB 0 1 1 0

SAUEXCLUSIV NEGAT (XNOR)

INPUT A B 0 0 0 1 1 0 1 1

OUTPUT A XNORB 1 0 0 1