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, 2001
Filed:
Oct. 02, 2000
Ira Emmet Baskett, Tempe, AZ (US);
Semiconductor Components Industries LLC, Phoenix, AZ (US);
Abstract
A differential logic gate (,) is provided with three current sources (,and,). Current source (,) provides keep alive current flowing through transistor (,) when a logic low is presented at the base terminal of transistor,. Current source (,) provides keep alive current flowing through transistor (,) when a logic low is presented at the base terminal of transistor,. Current source (,) provides additional current drive when either transistor (,) or transistor (,) is conducting maximum current. Keep alive current sources (,and,) allow operation of differential logic gate (,) at reduced peak to peak voltage transitions with reduced ringing and smoother logic transitions.