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MULTILEVEL CELL NAND FLASH MEMORY STORAGE SYSTEM, AND CONTROLLER AND ACCESS METHOD THEREOF

  • US 20100205352A1
  • Filed: 03/27/2009
  • Published: 08/12/2010
  • Est. Priority Date: 02/10/2009
  • Status: Active Grant
First Claim
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1. A multi level cell (MLC) NAND flash memory storage system, for simulating a single level cell (SLC) NAND flash memory chip, the MLC NAND flash memory storage system comprising:

  • a connector, for connecting a host system;

    a MLC NAND flash memory chip, having a plurality of MLC physical blocks, wherein each of the MLC physical blocks has a plurality of pages; and

    a flash memory controller, coupled to the MLC NAND flash memory chip and the connector, for providing a plurality of SLC logical blocks corresponding to the SLC NAND flash memory chip to the host system, wherein each of the MLC physical blocks is mapped to at least two of the SLC logical blocks.

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