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. 09, 2020
Filed:
Jan. 22, 2019
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventors:
Assignee:
SK hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/08 (2006.01); G11C 11/408 (2006.01); G11C 7/10 (2006.01); G11C 8/06 (2006.01); G11C 29/02 (2006.01);
U.S. Cl.
CPC ...
G11C 8/08 (2013.01); G11C 7/1051 (2013.01); G11C 8/06 (2013.01); G11C 11/4085 (2013.01); G11C 29/022 (2013.01); G11C 29/028 (2013.01);
Abstract
The present disclosure relates to a data out buffer and a memory device having the same. The data out buffer includes a pull-up main driver, coupled between a power supply terminal and an output terminal, configured to output data of a high level; and a pull-down main driver, coupled between the output terminal and a ground terminal, configured to output data of a low level, wherein the pull-up main driver comprises a main pull-up transistor of a first type; and a plurality of first trim transistors, each of a second type.