CPC G11C 11/40615 (2013.01) [G11C 11/4085 (2013.01); G11C 11/40622 (2013.01)] | 20 Claims |
1. A method for refreshing a row hammer, comprising:
determining a row hammer refresh instruction for a target word line;
setting, according to the row hammer refresh instruction, a preset row hammer refresh signal to a valid state, wherein the valid state of the preset row hammer refresh signal indicates that the row hammer refresh instruction is performed in a first refresh period; and
in response to detecting that the row hammer refresh instruction is not completed within the first refresh period, continuing the valid state of the preset row hammer refresh signal to a next refresh period of the first refresh period.
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