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.

Date of Patent:
Feb. 16, 2021

Filed:

Jan. 15, 2019
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Ju Ho Jeon, Hwasung-si, KR;

Hun-Dae Choi, Hwaseong-si, KR;

Assignee:

Samsung Electronics Co., Ltd, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/4093 (2006.01); G11C 11/4094 (2006.01); H03K 19/00 (2006.01); G11C 11/4076 (2006.01); G11C 11/4096 (2006.01); G11C 11/408 (2006.01);
U.S. Cl.
CPC ...
G11C 11/4093 (2013.01); G11C 11/4076 (2013.01); G11C 11/4087 (2013.01); G11C 11/4094 (2013.01); G11C 11/4096 (2013.01); H03K 19/0005 (2013.01);
Abstract

The semiconductor memory device including a data strobe signal input buffer configured to receive a data strobe signal and generate an input data strobe signal, a data input buffer configured to receive data delayed by a first delay time compared to the data strobe signal and generate input data, a latency control signal generator configured to generate and activate a first on-die termination control signal during a first period in which the data strobe signal is applied in response to receiving a write command, a first on-die termination control circuit configured to vary a first variable resistance code in response to the first on-die termination control signal, and a data strobe signal termination circuit configured to terminate the data strobe signal and including a first on-die termination resistor, a resistance value of which varies in response to the first variable resistance code may be provided.


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