Refresh control device
US9928896B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2017 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Apr 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/406
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A refresh control device may include a first oscillator configured to generate a first oscillation signal, a second oscillator configured to generate a second oscillation signal having a different cycle from the first oscillation signal, a first address controller configured to latch an address in response to the first oscillation signal, and output the latched address when a refresh signal is enabled. The refresh control device may also include a second address controller configured to latch the address in response to the second oscillation signal, and output the latched address when the refresh signal is enabled. Further included may be a selector configured to select any one of the output of the first address controller and the output of the second address controller in response to a select signal, and output the selected output as a row hammer address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.