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. 11, 2006
Filed:
May. 26, 2004
Atsushi Sueoka, Fujisawa, JP;
Hiroaki Nakano, Yokohama, JP;
Atsushi Sueoka, Fujisawa, JP;
Hiroaki Nakano, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor device includes a first circuit block which operates on a first power supply voltage to output a first digital signal having an amplitude equal to that of the first power supply voltage, a level shifting circuit into which the first digital signal is input and which converts the amplitude of the first digital signal to an amplitude equal to that of a second power supply voltage to output as a second digital signal via an output terminal, a second circuit block which operates on the second power supply voltage and into which the second digital signal is input, and a monitor circuit which produces a first signal to set the output terminal of the level shifting circuit to a predetermined potential in a case where the first power supply voltage drops below a predetermined voltage level.