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:
Aug. 05, 2008
Filed:
Feb. 08, 2007
Kenji Yoshinaga, Itami, JP;
Masashi Matsumura, Itami, JP;
Futoshi Igaue, Itami, JP;
Mihoko Akiyama, Itami, JP;
Fukashi Morishita, Tokyo, JP;
Kenji Yoshinaga, Itami, JP;
Masashi Matsumura, Itami, JP;
Futoshi Igaue, Itami, JP;
Mihoko Akiyama, Itami, JP;
Fukashi Morishita, Tokyo, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
A semiconductor device has a first operation mode and a second operation mode in which power supply with a higher voltage value than that in the first operation mode is provided. The semiconductor device includes a memory portion having memory cells for storing data and a power supply circuit portion supplying a first voltage and a second voltage to the memory portion. The memory portion writes or reads data to or from the memory cells based on the first voltage and the second voltage, and the power supply circuit portion provides a smaller voltage difference between the first voltage and the second voltage in the second operation mode as compared with the voltage difference in the first operation mode.