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. 27, 2009
Filed:
Feb. 22, 2007
Kenji Yamada, Nukata-gun, JP;
Chikara Kobayashi, Kodaira, JP;
Kenji Yamada, Nukata-gun, JP;
Chikara Kobayashi, Kodaira, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A microcomputer having a sleep mode includes first and second chips received in a single package. The first and second chips are manufactured with different manufacturing processes such that a leak current in the first chip is less than that in the second chip. When a sleep signal for putting the microcomputer in the sleep mode becomes active, data stored in the second chip is transmitted to the first chip. After the data transmission is completed, a power supply voltage supplied to the second chip is stopped and the second chip stops its operation until the sleep mode is released. The data transmission is achieved by digital logic circuits that can be easily redesigned by using a conventional automatic layout generator.