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:
Jan. 17, 2023
Filed:
Apr. 09, 2021
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventors:
Assignee:
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 29/50 (2006.01); G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
G11C 29/50004 (2013.01); G11C 7/1084 (2013.01); G11C 2029/5004 (2013.01);
Abstract
A semiconductor device includes an external terminal, an input buffer having an input terminal connected to the external terminal, a voltage generating circuit configured to generate a test voltage supplied to the input terminal, and a control circuit configured to determine whether the input buffer is deteriorated based on the test voltage supplied to the input terminal and an output level of the input buffer responding to the test voltage.