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:
Sep. 24, 1985
Filed:
Apr. 08, 1982
Kenji Kaneko, Hachioji, JP;
Minoru Nagata, Kodaira, JP;
Makoto Furihata, Gunma, JP;
Setsuo Ogura, Takasaki, JP;
Takahiro Okabe, Nishitama, JP;
Mitsuya Sato, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A semiconductor integrated circuit includes low voltage operation circuitries such as I.sup.2 L and high voltage operation circuitries operating at a higher voltage than the low voltage operation circuitries. Both of the low and high voltage operation circuitries are implemented in a single semiconductor chip in coexistence with each other. The low voltage operation circuitries are disposed in constant current paths in the high voltage operation circuitries so that the currents once used by the high voltage operation circuits are utilized again by the low voltage operation circuitries. Power dissipation of the whole integrated circuit is thus reduced significantly.