Patent ID: 11894042
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 7:
8. A circuit for refreshing a row hammer, comprising:
a detection circuit, configured to:
determine a row hammer refresh trigger signal and a refresh execution signal; and
output a preset row hammer refresh signal in a valid state in response to the row hammer refresh trigger signal indicating that a row hammer refresh instruction for a target word line is received and the refresh execution signal indicating that the row hammer refresh instruction is not completed,
wherein the valid state of the preset row hammer refresh signal indicates that the row hammer refresh instruction is performed within a first refresh period, and the valid state of the preset row hammer refresh signal will be continued to a next refresh period of the first refresh period in a case that the row hammer refresh instruction is not completed within the first refresh period.