PALs vs. Discrete Logic

3

1

2

2

2

1

1

2

1

4

4

3

3

5

1

W

\A

X

\C

Y

Z

B

B

B

B

B

B

\B

\B

C

C

C

C

C

A

A

A

D

D

D

\D

\D

\D

1: 7404 Hex Inverters

2, 5: 7400 Quad 2-input NAND

3: 7410 Tri 3-input NAND

4: 7420 Dual 4-input NAND

4 SSI packages vs. 1 PLA/PAL package

• Code converter: discrete gate implementation

Previous slide

Next slide

Back to first slide

View graphic version