Circuitos Lógicos

Circuitos Lógicos - Universidade Estadual do Cear UECE...

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Universidade Estadual do Ceará – UECE Ciências da Computação Circuitos Lógicos e Digitais – 2009/2 Circuitos Aritméticos Domingos Sávio Fevereiro de 2010
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Circuitos Aritméticos Aritmética Inteira Somadores Subtradores Multiplicadores Todas as operações lógicas e aritméticas são realizadas na Unidade Lógica e Aritmética ULA de uma computador
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Somador Soma binária 0 0 1 1 + 0 + 1 + 0 + 1 0 1 1 10 A B S Ts Vai-um
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Somador Tabela Verdade A B S Ts 0 0 0 0 0 1 1 0 1 0 1 0 1 1 0 1 S = A + B Ts = A . B Meio Somador
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Somador Somador Completo Tabela Verdade A B Te S Ts 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 1 1 1 00 01 11 10 0 0 1 0 1 1 1 0 1 0 S B Te A S = ABTe + ABTe + ABTe + ABTe S = A + B + Te 00 01 11 10 0 0 0 1 0 1 0 1 1 1 Ts B Te A Ts = ATe + BTe + AB
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Somador Somador Completo Circuito Somador Completo
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Somador Paralelo Completo Carry ripple (Ondulação ou Propagação do Carry) A 3 A 2 A 1 A 0 B 3
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This note was uploaded on 03/16/2011 for the course SCIENCE 101 taught by Professor Dom during the Spring '10 term at Unicamp.

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Circuitos Lógicos - Universidade Estadual do Cear UECE...

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