Hybrid memory controller with command buffer for arbitrating access to volatile and non-volatile memories in a hybrid memory group

    公开(公告)号:US10114560B2

    公开(公告)日:2018-10-30

    申请号:US15788501

    申请日:2017-10-19

    Abstract: A hybrid memory controller performs receiving first and second central processing unit (CPU) requests to write to/read from a hybrid memory group, identifying a volatile memory device and a non-volatile memory device as a first target and second target of the first and second CPU requests, respectively, by decoding and address mapping of the first and second CPU requests, queuing the first and second CPU requests in first and second buffers, respectively, generating, based on an arbitration policy, a first command corresponding to one of the first and second CPU requests to an associated one of the first and second targets, and generating a second command corresponding to another one of the first and second CPU requests to an associated another one of the first and second targets, and transmitting the first and second commands to respective ones of the volatile and non-volatile memory devices.

    Memory device, memory system, and operating method of memory system

    公开(公告)号:US12230356B2

    公开(公告)日:2025-02-18

    申请号:US18384973

    申请日:2023-10-30

    Abstract: A memory device including a plurality of nonvolatile memory chips each including a status output pin and a buffer chip configured to receive a plurality of internal state signals, which indicate states of the plurality of nonvolatile memory chips, from the status output pins and output an external state signal having a set period on the basis of the internal state signals indicating a particular state, wherein in a first section of the external state signal having the set period, a duty cycle of the external state signal determines depending on an identification (ID) of the nonvolatile memory chip which outputs the internal state signal indicating the particular state among the plurality of nonvolatile memory chips.

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