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. 21, 2001
Filed:
Dec. 13, 1999
Applicant:
Inventor:
Robert G. Thomson, Tempe, AZ (US);
Assignee:
Semiconductor Components Industries, LLC, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/90175 ;
U.S. Cl.
CPC ...
H03K 1/90175 ;
Abstract
A circuit (,) for providing TTL logic signals at an output (,) employs dual pull up devices (,) at the output. The first device (,) is a bipolar transistor that acts as an emitter-follower to quickly pull up the output in response to applied logic signals to drive the output to a logic one state. Thereafter, the second device (,) which is a MOS transistor is turned on to drive the magnitude of the high logic output signal to substantially V,, the positive power supply voltage supplied to the circuit (,).