Apparatus and methods for managing wear leveling in memory

A method, comprising:

• apply a predictive model to respective process data corresponding to a first grouping of memory cells of a plurality of groupings of memory cells and respective characterization data corresponding to the first grouping of memory cells to generate a respective indication of expected endurance of a plurality of indications of expected endurance for the first grouping of memory cells, wherein the respective process data corresponding to the first grouping of memory cells is generated in response to fabrication of a die containing a memory comprising the plurality of groupings of memory cells, and wherein the respective characterization data corresponding to the first grouping of memory cells is generated in response to testing of the die;
• store an initial value of a respective count for the first grouping of memory cells to the memory indicative of its respective indication of expected endurance;
• and
• perform wear leveling for the plurality of groupings of memory cells in response to at least the respective count for the first grouping of memory cells.

A memory, comprising:

• an array of memory cells comprising a plurality of groupings of memory cells;
• a table comprising a respective address for each grouping of memory cells of the plurality of groupings of memory cells, and a respective value for each grouping of memory cells of the plurality of groupings of memory cells indicative of an expected endurance of its respective grouping of memory cells;
• and
• a controller for access of the array of memory cells, wherein, during an initialization operation on the memory, the controller is configured to cause the memory to:
• access the respective value for a first grouping of memory cells of the plurality of groupings of memory cells from the table;
• in response to the respective value for the first grouping of memory cells, assign an initial value of a respective count of a wear leveling scheme of the memory for the first grouping of memory cells;
• and
• store the initial value of the respective count for the first grouping of memory cells to the array of memory cells.