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Data storage device and method for operating nonvolatile memory

  • US 10,229,054 B2
  • Filed: 03/15/2018
  • Issued: 03/12/2019
  • Est. Priority Date: 06/19/2017
  • Status: Active Grant
First Claim
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1. A data storage device, comprising:

  • a nonvolatile memory; and

    a microcontroller, allocating the nonvolatile memory to store write data requested by a host,wherein;

    according to a first accumulated amount of data written to the nonvolatile memory in a first writing mode and a second accumulated amount of data written to the nonvolatile memory in a second writing mode, the microcontroller allocates the nonvolatile memory to store write data requested by the host in the first writing mode and in the second writing mode alternately; and

    in comparison with the first writing mode, more bits of data are stored in one storage cell in the second writing mode.

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