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:
Aug. 11, 1992
Filed:
May. 19, 1991
Shinzou Satou, Tokyo, JP;
Yoshiki Shimauchi, Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A semiconductor integrated circuit has an output circuit which includes a Bi-CMOS circuit of receiving an input signal, and an ECL circuit. The ECL circuit includes a differential pair for receiving an output of the Bi-CMOS circuit, na an emitter follower for receiving an output of the differentail pair. The Bi-CMOS circuit comprises a CMOS inverter connected in series between power sources; a first npn transistor, a diode, and a second npn transistor which are connected in series between the power sources; and second and third n-channel MOS transistors for turning the second npn transistor ON and OFF. This semiconductor integrated circuit provides a stable, operation and low power consumption.