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:
Apr. 18, 2000
Filed:
Feb. 04, 1999
Takuya Ariki, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A semiconductor integrated circuit device includes a plurality of data output buffer parts in correspondence to a plurality of data input/output terminals. Each data output buffer part is supplied with a power supply potential and a ground potential by power supply lines and two ground lines connected with independent power supply pads and ground potential supply pads respectively. When outputting a high-level signal, each data output buffer part supplies a current to the corresponding data output terminal from the two power supply lines. Therefore, the value of a current flowing per power supply line can be suppressed for reducing noise caused on the power supply line. Similarly, noise caused on the ground lines can also be reduced.