Rambus Inc.
MEMORY SYSTEM WITH ACTIVATE-LEVELING METHOD
Last updated:
Abstract:
Improvements are disclosed for "leveling" or averaging out more evenly the number of activate/precharge cycles seen by the rows of a memory component, so that one or more particular rows are not excessively stressed (relative to the other rows). In one embodiment, a memory controller includes remapping facilities arranged to move data stored in a physical row from RPK to RPK' and modify the mapping from logical row RLK while minimizing impact on normal read/write operations. Remapping operations may be scheduled relative to refresh or other maintenance operations. Remapping operations may be conditionally deferred so as to minimize performance impact.
Status:
Application
Type:
Utility
Filling date:
16 Feb 2022
Issue date:
1 Sep 2022