US 11,854,596 B2
Data storage device and operating method thereof
Jin Woong Kim, Gyeonggi-do (KR); and Ji Hoon Yim, Gyeonggi-do (KR)
Assigned to SK hynix Inc., Gyeonggi-do (KR)
Filed by SK hynix Inc., Gyeonggi-do (KR)
Filed on Sep. 26, 2022, as Appl. No. 17/952,828.
Application 17/952,828 is a continuation of application No. 17/217,176, filed on Mar. 30, 2021, granted, now 11,488,648.
Application 17/217,176 is a continuation of application No. 16/736,448, filed on Jan. 7, 2020, granted, now 11,004,495, issued on May 11, 2021.
Application 16/736,448 is a continuation in part of application No. 16/032,492, filed on Jul. 11, 2018, granted, now 10,553,270, issued on Feb. 4, 2020.
Claims priority of application No. 10-2017-0174249 (KR), filed on Dec. 18, 2017.
Prior Publication US 2023/0009365 A1, Jan. 12, 2023
Int. Cl. G11C 7/00 (2006.01); G11C 11/406 (2006.01); G11C 16/34 (2006.01); G11C 16/16 (2006.01); G11C 11/4093 (2006.01)
CPC G11C 11/40607 (2013.01) [G11C 11/4093 (2013.01); G11C 11/40615 (2013.01); G11C 16/16 (2013.01); G11C 16/3409 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A controller for controlling a nonvolatile memory device, the controller comprising:
a host interface configured to receive a refresh scan request from a host device;
a processor configured to control the nonvolatile memory device to perform a refresh scan operation on a plurality of memory blocks in response to the refresh scan request, and transmit a result of the refresh scan operation to the host device through the host interface; and
a memory interface configured to transmit a refresh operation command for performing a refresh operation to the nonvolatile memory device in response to a refresh operation request received from the host device,
wherein the result of the refresh scan operation includes device health information indicating at least one of a read count, an erase count, or a failed bit count.