MEMORY SYSTEM

To provide a memory system capable of optimizing data retention for each memory cell in a non-volatile memory.SOLUTION: A memory system includes a non-volatile memory and a controller (memory controller). The non-volatile memory includes memory cells. In response to receiving, from a host, a first c...

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Bibliographic Details
Main Authors SUZUKI RIKI, KOJIMA YOSHIHISA
Format Patent
LanguageEnglish
Japanese
Published 30.09.2021
Subjects
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INFORMATION STORAGE
PHYSICS
SEMICONDUCTOR DEVICES
STATIC STORES
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Summary:To provide a memory system capable of optimizing data retention for each memory cell in a non-volatile memory.SOLUTION: A memory system includes a non-volatile memory and a controller (memory controller). The non-volatile memory includes memory cells. In response to receiving, from a host, a first command instructing to prolong data retention, the controller controls access operation to the non-volatile memory by switching a mode for controlling the access operation to the non-volatile memory, from a first mode, to a second mode corresponding to longer data retention than the first mode.SELECTED DRAWING: Figure 2 【課題】不揮発性メモリにおける各メモリセルのデータリテンションを適切化できるメモリシステムを提供する。【解決手段】メモリシステムは、不揮発性メモリとコントローラ（メモリコントローラ）とを有する。不揮発性メモリは、メモリセルを有する。コントローラは、データリテンションの長期化を指示する第１のコマンドをホストから受信したことに応じて、不揮発性メモリへのアクセス動作を制御するモードを第１のモードから、第１のモードより長いデータリテンションに対応する第２のモードへ切り替えて、不揮発性メモリへのアクセス動作を制御する。【選択図】図２
Bibliography:Application Number: JP20200173166