Programmable logic array integrated circuits with interconnection conductors of overlapping extent
US5592106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | May 17, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17704
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.