公开(公告)号：US20230214123A1

公开(公告)日：2023-07-06

申请号：US17891495

申请日：2022-08-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sooyoung JI ,  Euiseong SEO ,  Jaeyong BAE ,  Yuhun JUN

IPC: G06F3/06

CPC classification number: G06F3/0613 ,  G06F3/0679 ,  G06F3/0641

Abstract: A storage device including: a memory storing data based on program modes; and a storage controller including a program mode table, the storage controller configured to: in response to a program request and first data being already stored in the memory, perform a deduplication operation in which the first data is logically and not physically programmed, in response to the program or an erase request, update a count value from a first to a second value, and in response to a determination that a first program mode corresponding to the first value and a second program mode corresponding to the second value are different, transmit a first command and address to the memory such that a first program operation in which the first data programmed with first bits corresponding to the first program mode is re-programmed with second bits corresponding to the second program mode is performed,