CPC G06F 3/0632 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0679 (2013.01)] | 20 Claims |
1. A method, comprising:
receiving a row activation command having a row address at control circuitry of a memory sub-system;
incrementing a first count of a row counter corresponding to the row address stored in a content addressable memory (CAM) of the memory sub-system;
determining, at the control circuitry, whether the first count is greater than a row hammer threshold (RHT) minus a second count of a CAM decrease counter (CDC), wherein the second count is incremented each time the CAM is full; and
responsive to determining that the first count is greater than the RHT minus the second count, issuing a refresh command to the row address.
|