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:
Apr. 25, 2017
Filed:
Oct. 04, 2016
Applicant:
Sii Semiconductor Corporation, Chiba-shi, Chiba, JP;
Inventors:
Makoto Mitani, Chiba, JP;
Hironori Hayashida, Chiba, JP;
Assignee:
SII SEMICONDUCTOR CORPORATION, Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 11/419 (2006.01);
U.S. Cl.
CPC ...
G11C 11/419 (2013.01);
Abstract
There is provided a nonvolatile memory device having a writing error preventing function with high noise resistance. This structure includes a switch and a noise filter circuit connected in parallel to a clock terminal, wherein a clock pulse monitoring circuit compares the number of clocks input from the clock terminal with a prescribed number, and when detecting abnormality in the number of clocks, switches to a noise countermeasure mode in which the switch is turned off to validate the noise filter circuit.