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:
Mar. 31, 2015
Filed:
Feb. 26, 2014
Kabushiki Kaisha Toshiba, Tokyo, JP;
Azuma Suzuki, Tokyo, JP;
Hiroyuki Hara, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor integrated circuit device includes a first flip-flop circuit receiving data in synchronization with a first clock signal, a logic circuit performing a predetermined process on data output from the first flip-flop circuit, a hold buffer delaying transmission of an output of the logic circuit, a second flip-flop circuit receiving an output of the hold buffer in synchronization with a second clock signal, and a power supply circuit capable of selecting a supply of a power supply voltage to the first flip-flop circuit, the logic circuit, and the second flip-flop circuit between a first power supply voltage and a second power supply voltage higher than the first power supply voltage. A power supply voltage supplied to the hold buffer remains the same when the power supply voltage supplied to the first flip-flop circuit, the logic circuit, and the second flip-flop circuit changes between first and second power supply voltages.