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US 12,717,690 B2Granted
Memory system
AssigneeSK hynix Inc.
InventorsWan-Jun Roh, Hyung-Sup Kim, Hyung-Sik Won
Life of this patent
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Abstract
A memory system may improve the endurance and performance of a plurality of memories included in the memory system mounted on a server system or a data processing system. For example, the memory system may throttle energy of a first memory using a second memory having a different characteristic from the first memory, control accesses to a memory region according to a refresh cycle, and control accesses to memories having different temperatures according to a priority of a request for each of the memories.
Claims7
A memory system, comprising:
- a first memory having a first temperature;
- a second memory having a second temperature that is lower than the first temperature, the second memory being physically separate from the first memory;
- and
- a controller including a first interface for interfacing with the first memory and a second interface for interfacing with the second memory,
- wherein the controller is configured to cache at least part of data stored in the first memory into the second memory through the first interface and the second interface in response to determining that the first temperature is equal to or higher than a threshold value,
- wherein the data is protected by leveraging a difference between first characteristics of the first memory in an environment having the first temperature and second characteristics of the second memory in an environment having the second temperature, the second characteristics being superior to the first characteristics,
- wherein each of the first characteristics and the second characteristics including a refresh period, the refresh period of the second memory is longer than the refresh period of the first memory due to the second temperature.
4 more elements
Dependencies are inferred from the claim text.