Programmable logic array integrated circuits with interconnectio

Details Programmable logic array integrated circuits with interconnectio Programmable logic array integrated circuits with interconnectio

1995-05-17

1997-01-07

Westin, Edward P.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 39, H03K 19177

Patent

active

055921060

ABSTRACT:
A programmable logic array integrated circuit device has a plurality of programmable logic regions arranged in a two-dimensional array of intersecting rows and columns. Associated with each logic region in each row is a local feedback conductor that spans a unique plurality of other logic regions in the row. Each such local feedback conductor makes the output of the associated logic region available as a possible input to any of the logic regions spanned by that conductor. Each logic region also has several associated intermediary conductors for making the signals on longer leads (such as row-long leads) available as possible inputs to any of the logic regions spanned by the intermediary conductors. At least some of the intermediary conductors associated with each logic region span different groups of logic regions.

REFERENCES:
patent: Re34363 (1993-08-01), Freeman
patent: 3473160 (1969-10-01), Wahlstrom
patent: 4609986 (1986-09-01), Hartmann et al.
patent: 4617479 (1986-10-01), Hartmann et al.
patent: 4642487 (1987-02-01), Carter
patent: 4677318 (1987-06-01), Veenstra
patent: 4713792 (1987-12-01), Hartmann et al.
patent: 4758745 (1988-07-01), Elgamal et al.
patent: 4774421 (1988-09-01), Hartmann et al.
patent: 4786904 (1988-11-01), Graham, III et al.
patent: 4871930 (1989-10-01), Wong et al.
patent: 4899067 (1990-02-01), So et al.
patent: 4912342 (1990-03-01), Wong et al.
patent: 5073729 (1991-12-01), Greene et al.
patent: 5121006 (1992-06-01), Pedersen
patent: 5208491 (1993-05-01), Ebeling et al.
patent: 5220213 (1993-06-01), Chan et al.
patent: 5220214 (1993-06-01), Pedersen
patent: 5260610 (1993-11-01), Pedersen et al.
patent: 5260611 (1993-11-01), Cliff et al.
patent: 5274581 (1993-12-01), Cliff et al.
patent: 5350954 (1994-09-01), Patel
patent: 5371422 (1994-12-01), Patel et al.
R. C. Minnick, "A Survey of Microcellular Research," Journal of the Association for Computing Machinery, vol. 14, No. 2, pp. 203-241, Apr. 1967.
S. E. Wahlstrom, "Programmable Logic Arrays--Cheaper by the Millions," Electronics, Dec. 11, 1967, pp. 90-95.
Recent Developments in Switching Theory, A. Mukhopadhyay, ed., Academic Press, New York, 1971, chapters VI and IX, pp. 229-254 and 369-422.
El Gamal et al., "An Architecture for Electrically Configurable Gate Arrays," IEEE Journal of Solid-State Circuits, vol. 24, No. 2, Apr. 1989, pp. 394-398.
El-Ayat et al., "A CMOS Electrically Configurable Gate Array," IEEE Journal of Solid-State Circuits, vol. 24, No. 3, Jun. 1989, pp. 752-762.
"XC5000 Logic Cell Array Family, Technical Data, Advance Information," Xilinx, Inc., Feb. 1995.

Affiliated with

Also associated with

Rating

Programmable logic array integrated circuits with interconnectio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programmable logic array integrated circuits with interconnectio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable logic array integrated circuits with interconnectio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1767552