Toshiba Memory Corporation

Hideki Hayakawa

Takumi Watanabe

According to one embodiment, a memory device includes a nonvolatile memory, a volatile memory, and a controller which writes a first data table including a first data group including a first logical address corresponding to a first physical and a first count value and a second data group including a second logical address corresponding to a second physical address and a second count value, to the volatile memory, reads the first data table when a third logical address is requested to be read, compares the first count value and the second count value with each other, and rewrites the first data group or the second data group to a third data group including a third logical address based on a result of the comparison.

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Kamakura, Japan

Hideki Hayakawa