Programmable logic device with enhanced wide input product term cascading
US6903573B1 · kind B1 · utility
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13Claims
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Key dates
| Filing date | Jul 14, 2003 |
| Grant date | Jun 7, 2005 |
| Priority date | — |
| Expiry date | Aug 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/17728
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable device with logic blocks is configured to cascade product terms from one logic block to another to increase the logical input width of the product terms. Each logic block may produce a plurality of product terms based upon the selection of inputs from a routing structure. Logic blocks configured to receive cascaded product terms includes a plurality of AND gates corresponding to the plurality of product terms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.