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:
Dec. 25, 1979
Filed:
Jul. 18, 1977
Applicant:
Inventor:
Benjamin J Sloan, Richardson, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3072 / ; 307203 ; 307D / ; 357 15 ;
Abstract
An input buffer gate for integrated injection logic (I.sup.2 L) circuits, including a multiple-collector transistor wherein a first collector is electrically common with the base thereof, a second (Schottky) collector is connected to receive an input signal, and a third collector which drives internal I.sup.2 L gates. The buffer has a high input breakdown voltage, virtually no input capacitance, power-up/power-down capability at logic '1' and virtually no input current at logic '0', very low storage time, and an input '1' threshold of about 0.5 volts.