Non-volatile memory system storing data in single-level cell or multi-level cell according to data characteristics
US7676626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2006 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Apr 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5641
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a system storing data received from an application or file system in a non-volatile memory system of single-level cells and multi-level cells in accordance with one or more data characteristics. The non-volatile memory system includes a non-volatile memory cell array having a plurality of multi-level cells forming a MLC area and a plurality of single-level cells forming a SLC area, and an interface unit analyzing a characteristic of the write data and generating a corresponding data characteristic signal. A flash transition layer receives the data characteristic signal, and determines whether the write data should be stored in the MLC area or the SLC area based on whether or not the write data will be accessed by the file, or whether the address associated with the write data is frequently updated or not.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.