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:
Jul. 11, 2000
Filed:
Jan. 29, 1997
Masaaki Ono, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A semiconductor integrated circuit capable of preventing propagation of noise from an output circuit to an input circuit and limiting inflow of a current caused by a protective circuit for protecting the input circuit has been disclosed. In a semiconductor integrated circuit including an input circuit 11, other circuits 12 and 13 that operate according to an output of the input circuit 11, and a plurality of power supply pins 16, 17, 18, and 19 through which a supply voltage is supplied to the input circuit 11 and other circuits 12 and 13 and to which the same supply voltage is applied, input circuit power lines 20 and 22 over which power is supplied to at least part of the input circuit 11 and general power lines 21 and 23 over which power is supplied to other circuits 12 and 13 are separated from each other. The input circuit power lines 20 and 22 and general power lines 21 and 23 are coupled to different power supply pins 16, 17, 18, and 19.