Semiconductor memory device and method for operating the same

摘要

A semiconductor memory device includes, a memory cell array configured to include a plurality of memory cells each having a plurality of logic pages, an error detector configured to detect a recovery target data among the data stored in the memory cell array, and output a logic page information of the recovery target data, a data recoverer configured to recover the recovery target data by using adjustment of a read reference voltage in response to the logic page information of the recovery target data, and a page buffer configured to read the recovery target data output from the memory cell array and write a recovered data output from the data recoverer in the memory cell array.

主权项

1. A semiconductor memory device, comprising:
a memory cell array configured to include a plurality of memory cells each having a plurality of logic pages; an error detector configured to detect a recovery target data among the data stored in the memory cell array, and output a logic page information of the recovery target data; a data recoverer configured to recover the recovery target data by using adjustment of a read reference voltage in response to the logic page information of the recovery target data; and a page buffer configured to read the recovery target data output from the memory cell array and write a recovered data output from the data recoverer in the memory cell array.