Programable logic array

Details Programable logic array Programable logic array

1978-12-21

1980-06-17

Fears, Terrell W.

Static information storage and retrieval

Systems using particular element

Flip-flop

365189, 307238, G11C 1140

Patent

active

042087287

ABSTRACT:
The decoder portion of a programable logic array (PLA) includes logic devices at crosspoints defined between the word (x) lines and the address (y) lines characteristic of a decoder portion. The devices are operative to combine two or more word lines to activate a single word line in the associated read only memory (ROM) in response to one of two or more possible inputs. The technique is effective even in cases where "don't care" conditions relating the two or more possible inputs cannot be found. A substantial reduction in chip area is achieved.

REFERENCES:
patent: 3969708 (1976-07-01), Sonoda
patent: 3983412 (1976-09-01), Roberts et al.

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