Self refresh oscillator
US6998901B2 · kind B2 · utility
27Cited by
20References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Jun 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/4065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a self refresh oscillator which includes a plurality of inverters serially connected between an input terminal and an output terminal; a pull up driver for charging a first node in accordance with a level of the output terminal; a comparator for comparing a potential of the first node with a reference voltage and outputting the result to the input terminal; and a period adjusting unit for operating based on a level of the output terminal and adjusting an amount of current discharged into a ground of the first node in accordance with a temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.