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:
Mar. 27, 1990
Filed:
Apr. 17, 1989
Applicant:
Inventor:
Kianoosh Naghshineh, Menlo Park, CA (US);
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307456 ; 307263 ; 307546 ; 307547 ;
Abstract
A TTL buffer circuit includes an active turn-off means so as to provide faster output transitions without using excess power dissipation. The active turn-off means is formed of a Schottky diode (D402), a resistor (R417), and a Schottky bipolar transistor (Q414) which causes rapid switching of a pull-down transistor (Q413), thereby increasing the speed of the output transitions.