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. 20, 1985
Filed:
Feb. 16, 1983
Applicant:
Inventor:
Robert C Martin, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307475 ; 307458 ; 307544 ; 307559 ; 330257 ; 323316 ;
Abstract
A high speed, noninverting circuit for providing an interface between transistor-transistor logic gates and Schottky transistor logic gates. In one embodiment the output of a TTL circuit is coupled through a Schottky diode to an emitter-follower whose input is Schottky clamped. The output of the emitter-follower is coupled to a constant current sink and to the cathode of a low barrier Schottky diode, the anode of which forms the STL-compatible output of the interface circuit. The present circuit thus performs a noninverting level translation with minimum propagation delay.