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:
May. 23, 1995
Filed:
Apr. 22, 1993
Applicant:
Inventors:
Sang H Dhong, Mahopac, NY (US);
Hyun J Shin, Mahopac, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03R / ;
U.S. Cl.
CPC ...
326 71 ; 326 81 ; 326 58 ;
Abstract
A pull-down circuit for a TTL compatible data output buffer uses NMOS devices. The pull-down circuit comprising two NMOS stages. Namely, a diode configuration stage where the gate and drain electrodes are shorted together during pull-down and a common-source stage. Both PMOS and NMOS devices are used for shorting the gate and drain electrodes.