The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2024
Filed:
Nov. 29, 2022
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventors:
Assignee:
SK HYNIX INC., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/0804 (2016.01); G06F 12/0891 (2016.01); G06F 12/14 (2006.01); G06F 13/16 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0804 (2013.01); G06F 12/0891 (2013.01); G06F 12/1416 (2013.01); G06F 13/1668 (2013.01);
Abstract
A memory system includes: a main memory device configured to include a plurality of row lines; a cache memory device configured to include a plurality of cache lines for caching data stored in the row lines, each cache line including cache data, a row hammer state value for storing an access number of a corresponding row line, and an access selection bit set according to the row hammer state value; and a memory controller configured to control an access operation to be performed on one of the main memory device and the cache memory device, which is selected according to the access selection bit of a cache-hit cache line, in response to a request from a host.