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. 24, 1990
Filed:
Oct. 24, 1988
Applicant:
Inventor:
Akira Denda, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03L / ;
U.S. Cl.
CPC ...
307475 ; 3072963 ; 307494 ; 307264 ;
Abstract
In a semiconductor integrated circuit which contains, on the same chip, at least one logic circuit operating with a positive potential power and at least one logic circuit operating with a negative potential power, a level converter circuit is inserted between above logic circuits and is constituted of two series circuits each consisting of a P-channel MOSFET and an N-channel MOSFET connected in series between power lines supplied with the positive potential power and the negative potential power, and wirings to form a flip-flop circuit with each one MOSFET in respective series circuits.