Apparatus for controlling self-refresh period in memory device
US7215588B2 · kind B2 · utility
70Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Sep 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/4061
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an apparatus for controlling a self-refresh period in a memory device capable of normally performing a self-refresh operation that is indispensable to the operation of a volatile memory device using a refresh period control even if the inner temperature of the memory device is changed. The apparatus determines different bank refresh periods according to the self-refresh entering time in a self-refresh mode, and thus the refresh operation can properly be performed to cope with the change of inner temperature of the memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.