Semiconductor memory device
US5243576A · kind A · utility
13Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1991 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Aug 29, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/406
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor memory device is capable of holding stored contents of dynamic memory cells effectively through a refresh operation. The memory device has a frequency-divider circuit, a refresh control circuit for generating a word line activation signal in response to an output of the frequency-divider circuit and a control circuit for controlling a frequency division value of the frequency-divider circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.