Semiconductor memory device having a refresh-cycle program circuit
US5970507A · kind A · utility
88Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1996 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jul 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/406
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a semiconductor memory device, a self refresh cycle program circuit is provided and a refresh operation is conducted in accordance with one of the refresh cycles programmed in the refresh-cycle program circuit. The refresh cycle of the self-refresh mode is selected from a plurality of refresh-cycle types. A plurality of refresh modes allows a refresh cycle to be selected from a plurality of refresh-cycle types in accordance with a selected refresh mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.