Row active control circuit of pseudo static ranom access memory
US7486574B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2005 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Mar 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/4067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A row active control circuit of a PSRAM controls a refresh timing when a refresh operation is performed before activation of a row path for embodiment of a page mode, thereby preventing mis-operations. The row active signal generating unit generates a row active signal when an active condition is set by the internal active signal. The internal active signal generating unit generates the internal active signal in response to a refresh start signal. The row active control unit generates a row active standby signal with the row active signal in response to the internal active signal. The external active signal generating unit for generating an external active control signal in response to the row active standby signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.