Saturday, March 10, 2012

Programmable Logic Array(PLA)

Programmable Logic Array (PLA) is a kind of programmable logic device used to implement combinational logic circuits. The PLA has a set of programmable AND gate planes, which link to a set of programmable OR gate planes, which can then be conditionally complemented to produce an output. This layout allows for a large number of logic functions to be synthesized in the sum of products (and sometimes product of sums) canonical forms.

Truth Table for PLA:
x2x1x0z1z0
00000
00110
01000
01110
10011
10100
11000
11101


Schematic Diagram for PLA:



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