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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.:

US 12237044 B1

PDFFull Text
Date of Patent:
Feb. 25, 2025

Filed:

Mar. 20, 2023

Impedance calibration circuit, memory controller including the impedance calibration circuit and memory system including the memory controller

Applicant:

SK Hynix Inc., Icheon-si, KR;

Inventor:

In Soo Lee, Icheon-si, KR;

Assignee:

SK hynix Inc., Icheon-si, KR;

Attorney:

WILLIAM PARK & ASSOCIATES LTD.

Primary Examiner:

Son T Dinh

Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 7/10 (2006.01); H03K 19/00 (2006.01);
U.S. Cl.
CPC ...
G11C 7/1048 (2013.01); H03K 19/0005 (2013.01); G11C 2207/2254 (2013.01);
Abstract

A first impedance calibration part configured to perform a first impedance calibration operation of generating a first impedance calibration code set for adjusting an impedance of a first terminating resistor to a first target value, with reference to an external resistor having a first resistance value. A second impedance calibration part configured to perform a second impedance calibration operation of generating a second impedance calibration code set for adjusting an impedance of a second terminating resistor to a second target value, with reference to a reference resistance unit, a resistance value of which is set to a second resistance value according to a part of the first impedance calibration code set.

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Quick Actions:

Lee, In. (2025). Impedance calibration circuit, memory controller including the impedance calibration circuit and memory system including the memory controller (U.S. Patent No. 12237044). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12237044

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