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. 08, 1989
Filed:
Feb. 02, 1988
Applicant:
Inventors:
Robert A Kertis, Puyallup, WA (US);
Douglas D Smith, Puyallup, WA (US);
Terrance L Bowman, Sumner, WA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307475 ; 307443 ; 307446 ;
Abstract
A biCMOS interface circuit receives a plurality of incoming signals at a first level and supplies a plurality of output signals at a second level. The interface circuit establishes control voltages which are used to maintain an identical trip point in each of a plurality of translator circuits. Generally, the trip point is set at midway between the 'high' and the 'low' levels of the incoming logic signal. The control voltages assure reliable performance over a wide operating environment.