US 11,922,061 B2
Adaptive memory refresh control
Kang-Yong Kim, Boise, ID (US); and Hyun Yoo Lee, Boise, ID (US)
Assigned to Micron Technology, Inc., Boise, ID (US)
Filed by Micron Technology, Inc., Boise, ID (US)
Filed on Aug. 26, 2021, as Appl. No. 17/458,068.
Claims priority of provisional application 63/124,539, filed on Dec. 11, 2020.
Claims priority of provisional application 63/072,671, filed on Aug. 31, 2020.
Prior Publication US 2022/0066700 A1, Mar. 3, 2022
Int. Cl. G06F 3/06 (2006.01); G11C 11/406 (2006.01)
CPC G06F 3/0659 (2013.01) [G06F 3/0619 (2013.01); G11C 11/40615 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving a first command at a memory device from a host device, the first command associated with host-device refresh-timing information, the host-device refresh-timing information indicating at least a first amount of time that remains before the host device is scheduled to issue a second command to direct the memory device to perform a next refresh operation;
determining at the memory device a self-refresh schedule based at least in part on the host-device refresh-timing information;
determining, at the memory device, memory-device refresh-timing information based at least in part on the self-refresh schedule, the memory-device refresh-timing information indicating at least a second amount of time that remains before the memory device is scheduled to undergo a next self-refresh operation; and
transmitting the memory-device refresh-timing information to the host device in response to a third command.