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:
Nov. 12, 1985
Filed:
May. 11, 1983
Applicant:
Inventor:
Harry J Bittner, Santa Clara, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307270 ; 307254 ; 3072 / ; 307303 ;
Abstract
An output stage suitable for monolithic semiconductor IC uses is disclosed. The stage employs a pair conventional NPN output transistors biased and driven with conventional bipolar IC elements. The pull up device, which sources output current for positive or rising inputs, is maintained on for negative signal swings so that it can be used to bias the pull down device which is cut off for positive signal swings.