Toshiba Memory Corporation

Kioxia Corporation

Masamichi Fujiwara

Masanobu Shirakawa

Marie Takada

Tsukasa Tokutomi

Hironori Uchikawa

Shohei Asami

Naoaki Kokubun

Tatsuro Hitomi

Kazumasa Yamamoto

According to one embodiment, a memory system includes a semiconductor memory and a controller. The semiconductor memory includes first to fourth word lines and first to fourth memory cells. The controller is configured to issue first and second instructions. The controller is further configured to execute a first operation to obtain a first read voltage based on a threshold distribution of the first memory cell, and a second operation to read data from the second memory cell.

Memory system

In general, according to an embodiment, a memory system includes a memory device including a memory cell; and a controller. The controller is configured to: receive first data from the memory cell in a first data reading; receive second data from the memory cell in a second data reading that is different from the first data reading; convert a first value that is based on the first data and the second data, to a second value in accordance with a first relationship; and convert the first value to a third value in accordance with a second relationship that is different from the first relationship.

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Kawasaki, Japan

Masamichi Fujiwara