Storage device configured to update hotnesses of received logical addresses and a method of operating the storage device

    公开(公告)号:US12013778B2

    公开(公告)日:2024-06-18

    申请号:US17837163

    申请日:2022-06-10

    摘要: A storage device including: a memory device including memory blocks having different bit densities; and a controller, the controller including: a memory to store a logical address list including a number of recently received logical addresses and a hotness table including a hotness of each of the logical addresses in the list; and a processor to receive a write command, a latest logical address and data, to update a hotness of the latest logical address in the hotness table, to insert the latest logical address into the logical address list, and to control the memory device to program the data into one of the memory blocks depending on whether the hotness of the latest logical address exceeds a threshold value, the hotness of the latest logical address being updated based on how long ago a logical address the same as the latest logical address was received.