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. 12, 2016
Filed:
Dec. 15, 2014
Applicant:
Renesas Electronics Corporation, Kanagawa, JP;
Inventors:
Shigeki Nakamura, Kanagawa, JP;
Shintaro Mori, Kanagawa, JP;
Yoshinori Tokioka, Kanagawa, JP;
Kenji Tokami, Kanagawa, JP;
Assignee:
RENESAS ELECTRONICS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/00 (2006.01); H03K 17/22 (2006.01); H03L 5/02 (2006.01); H03K 3/012 (2006.01);
U.S. Cl.
CPC ...
H03K 17/223 (2013.01); H03K 3/012 (2013.01); H03L 5/02 (2013.01);
Abstract
To provide a semiconductor device provided with a power-on reset circuit that can reliably detect decrease in power-supply voltage. The power-on reset circuit provided on the semiconductor device includes: a first comparison circuit that compares a primary voltage with a reference value; and a second comparison circuit that compares a secondary voltage with the reference value. The power-on reset circuit issues a reset signal based on comparison results of the first and second comparison circuits.