

UFCD 6074 - A04 - PAL, PLA e Circuitos Programáveis
Presentation
•
Computers
•
10th Grade
•
Practice Problem
•
Hard
Alexandre Matos
Used 1+ times
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7 Slides • 0 Questions
1
PAL, PLA e Circuitos Programáveis
By Alexandre Matos
Curso Profissional TEAC - 1.º Ano | UFCD 6074
2
O que são dispositivos programáveis?
Circuitos integrados que permitem configurar a lógica interna
Substituem muitos componentes discretos (portas lógicas)
Exemplos: PAL, PLA, GAL, CPLD, FPGA
3
PAL vs PLA
Característica | PAL | PLA |
|---|---|---|
Nome | Programmable Array Logic | Programmable Logic Array |
Programável em... | Saída apenas | Entradas e saídas |
Flexibilidade | Média | Alta |
Complexidade | Menor | Maior |
Exemplo de uso | Lógica combinatória simples | Funções lógicas complexas |
4
Como funcionam?
PAL e PLA são compostos por:
Matriz de portas AND (E)
Matriz de portas OR (OU)
Podemos definir quais combinações de entradas produzem quais saídas
5
Constituída por uma matriz (array) programável de portas AND e uma matriz fixa de portas OR.
PAL
6
Constituída por uma matriz (array) programável de portas AND e outra, também programável, matriz de portas OR.
PLA
7
Criar uma função lógica:
F=A⋅B+A'⋅C
Exemplo com PAL
PAL, PLA e Circuitos Programáveis
By Alexandre Matos
Curso Profissional TEAC - 1.º Ano | UFCD 6074
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