Programmable Logic Device - Technical MCQs

Q1:

The difference between a PLA and a PAL is:

A The PLA has a programmable OR plane and a programmable AND plane, while the PAL only has a programmable AND plane.

B The PAL has a programmable OR plane and a programmable AND plane, while the PLA only has a programmable AND plane.

C The PAL has more possible product terms than the PLA.

D PALs and PLAs are the same thing.

ANS:A - The PLA has a programmable OR plane and a programmable AND plane, while the PAL only has a programmable AND plane.

PLD (programmable logis devices) has a programmable OR plane, and fixed AND plae, PLA (programmable logis arrays) has programmable OR, and programmable AND palne, PAL (programmable array logic) has fixed OR, and programmable AND plane.