Look-up table based logic element with complete permutability of the inputs to the secondary signals
US5821773A · kind A · utility
50Cited by
55References
32Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 6, 1995 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Sep 6, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/1737
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A logic element for a programmable logic device. The logic element includes a look-up table (400) for implementing logical functions, a programmable delay block (415), a storage block (430) configurable as a latch or a flip-flop, and a diagnostic shadow latch (435). A plurality of inputs (410) to the logic element and complements of these inputs are available to control the secondary functions of the storage block (430).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.