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:
Dec. 10, 1996
Filed:
Oct. 28, 1994
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An improved output driver circuit for a semiconductor integrated circuit device, wherein a stepped control voltage generation circuit is connected to the gate of a driving transistor for driving an output terminal DQ. The stepped control voltage generation circuit responds to an applied input data signal to provide a stepped control voltage changing in a stepped form including a plurality of steps to the gate of the driving transistor. The driving transistor therefore changes its state on a step by step basis from a cut off state to a conduction state. Thus, sharp change in output current flowing through the output terminal can be prevented, and noise caused by a parasitic inductance can be avoided, thus preventing an erroneous operation in the device.