Kioxia Corporation

Toshiba Memory Corporation

Prashob Ramachandran Nair

Hajime Yamazaki

Takahiro Miomo

Yasunori Nakamura

Makoto Domon

A memory system includes a first nonvolatile memory, a first processor, and a second processor. The first processor sets a first assignment amount. The second processor performs access to the first nonvolatile memory, calculates a consumed amount which is an amount according to an operation time of the first nonvolatile memory in the access, and transmits a notification to the first processor when the consumed amount reaches the first assignment amount.

Memory system

According to one embodiment, a memory system includes a non-volatile semiconductor memory with a plurality of dies and a memory controller. A temperature sensor is provided for each of the dies. The temperature sensors measures a temperature of each die. The memory controller schedules execution of access commands for each of the dies based on the measured die temperature, a predetermined limit temperature for each of the dies, and the type of access command that has been received by the memory controller.

A memory system includes a nonvolatile semiconductor memory and a memory controller. The memory controller is configured to schedule plural types of reliability countermeasure processes to be executed for the nonvolatile semiconductor memory. The plural types of reliability countermeasure processes includes at least a first reliability countermeasure process. The memory controller is configured to skip the first reliability countermeasure process to be executed when the first reliability countermeasure process is not necessary to be executed by executing an access process other than the first reliability countermeasure process to the nonvolatile semiconductor memory.

Growing community of inventors

Kanagawa, Japan

Prashob Ramachandran Nair