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. 01, 2000
Filed:
Aug. 28, 1998
Gene B Hinterscher, McKinney, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A bus-hold circuit includes an inverter (10) having an input (4) and an output (16). A first transistor (22) has a gate coupled to the output (16). A second transistor (20) has a source-drain current pat coupled in series with the current path of the first transistor (22) between a power supply terminal and a reference terminal. A third transistor (28) has a source-drain current path coupled between the gates of the first and second transistors (22, 20) and a gate coupled to the power supply terminal. A fourth transistor (30) has a source-drain current coupled between the gate of the second transistor (20) and the input and a gate coupled to the power supply terminal. A resistor (26) has a first terminal coupled to the source-drain current pats of the first and second transistors (22, 20) and a second terminal coupled to the input. The bush old circuit eliminates the need for a Schottky diode and allows near rail-to-rail bus operation.