Patent ID: 11967368
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. The memory system according to claim 1, wherein
the nonvolatile memory comprises a control unit configured to determine a threshold voltage of data corresponding to the third bit in the first memory cell of the k-th string on a basis of data obtained by reading data written by the writing data corresponding to the first bit, the second bit and the fourth bit in the first memory cell of the k-th string, the data corresponding to the second bit input redundantly in the writing data corresponding to the first bit, the second bit and the fourth bit in the first memory cell of the k-th string and the writing data corresponding to the third bit in the first memory cell of the k-th string, and input data corresponding the third bit for writing data corresponding to the third bit in the first memory cell of the k-th string.