Apparatus and method of generating DBI signal in semiconductor memory apparatus
US7408483B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2006 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Nov 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/1063
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for generating a DBI signal in a semiconductor memory apparatus includes a data switching detection unit that detects whether or not previous data is consistent with current data and outputs a detection signal according to a detection result, and a DBI detection unit that outputs a DBI signal according to a difference in charge sharing level using the detection signal. Therefore, it is possible to minimize current consumption. Further, since there is no effect due to resistance skew of a transistor, an error in DBI signal generation and an error in data transfer accordingly can be prevented. Therefore, it is possible to improve the reliability of a system to which a semiconductor memory apparatus is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.