Method of performing wear leveling and memory device
By predicting the type of data to be written and writing data according to the erase count table, the problem of insufficient data movements in the prior art is solved, and more effective loss equalization and longer memory life are achieved.
CN119493522APending Publication Date: 2025-02-21MACRONIX INTERNATIONAL CO LTD
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Patent Information
- Application Number
- CN202311132076.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-08-18
- Filing Date
- 2023-09-04
- Publication Date
- 2025-02-21
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Figure CN119493522A_ABST
Abstract
The invention provides a method for performing wear leveling and a memory device. The memory device includes a plurality of blocks. The method for executing wear leveling comprises the following steps: the memory device receives data to be written from a host; predicting whether the data to be written belongs to a first type of data or a second type of data; referring to an erase count table in an erase count table buffer of the memory device; and when the to-be-written data is predicted to belong to the first type of data, writing the to-be-written data into the block with the highest erasing frequency in the blocks, and when the to-be-written data is predicted to belong to the second type of data, writing the to-be-written data into the block with the lowest erasing frequency in the blocks.
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