Method and apparatus for determining refresh counter of dynamic random access memory (DRAM)
US11705178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2022 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Apr 19, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present application provide a method and apparatus for determining a refresh counter of a DRAM. The method includes: writing data to a target memory cell connected with a target word line in the DRAM, and controlling the DRAM to perform refreshes starting from a preset word line according to a preset rule; determining, according to whether the data can be read accurately from the target memory cell after the refreshes, an intermediate refresh counter of refreshes on the target word line; and controlling, based on the intermediate refresh counter, the DRAM to perform refreshes starting from the target word line according to the preset rule, and determining the refresh counter of the DRAM according to whether the data can be read accurately from the target memory cell after the refreshes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.