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:
Feb. 13, 2007
Filed:
Apr. 22, 2004
Applicants:
Atsuhiro Hayashi, Akisima, JP;
Takemi Negishi, Honjo, JP;
Hiroshi Toyoshima, Akiruno, JP;
Inventors:
Assignee:
Renesas Technology Corp., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03K 19/0175 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a semiconductor integrated circuit that can perform impedance control and slew rate control independently of each other and simplify the structure of a control circuit. An output circuit comprising plural output MOSFETs connected in parallel is used, from among the plural output MOSFETs, the number of output MOSFETS to be turned on is selected by a first control means to control output impedance, and slew rate is controlled by a second control means controlling a drive signal of the output MOSFETs to be turned on.