Storage device, storage system comprising the same, and operating methods of the storage device

    公开(公告)号:US10747680B2

    公开(公告)日:2020-08-18

    申请号:US15860511

    申请日:2018-01-02

    Abstract: A storage device, a storage system comprising the same, and operating methods of the storage device are provided. The storage device includes a first nonvolatile memory cell array which includes a plurality of cell strings arranged in a direction perpendicular to a substrate, and stores first data at a first address, a second nonvolatile memory cell array which stores second data selected from the first data at a second address, in accordance with an access pattern to the first data, and a memory controller which manages a first mapping table indicating that the second data is stored at the second address of the second nonvolatile memory cell array, and a second mapping table indicating that the first data as original data of the second data is stored at the first address.

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