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:
Jan. 05, 2021

Filed:

Mar. 02, 2020
Applicant:

SK Hynix Inc., Icheon-si, KR;

Inventor:

Young Jin Moon, Seoul, KR;

Assignee:

SK hynix Inc., Icheon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/30 (2006.01); H03F 3/45 (2006.01); G11C 29/50 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
G11C 16/30 (2013.01); G11C 29/50 (2013.01); H03F 3/45 (2013.01); G11C 16/0483 (2013.01); G11C 2029/5004 (2013.01); H03F 2203/45156 (2013.01); H03F 2203/45332 (2013.01);
Abstract

A data storage apparatus includes storage and a controller configured to control the storage in response to a request from a host. The controller includes an internal voltage trimming circuit which includes: an integration circuit configured to generate an integration signal by integrating a difference between a test voltage output from a device under test (DUT) and a reference voltage; a comparison circuit configured to generate a comparison signal by comparing the integration signal and the reference voltage; a transition detection circuit configured to output a detection signal according to level transition of the comparison signal; a counter configured to receive an initial trimming code and generate a preliminary trimming code by increasing or reducing the initial trimming code in response to the detection signal; and an average circuit configured to generate a final trimming code by averaging the preliminary trimming code for a determined time interval and provide the final trimming code to the storage.


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