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:
Nov. 23, 2004
Filed:
Sep. 02, 2003
Jonathan S. McCalmont, Ames, IA (US);
Micrel, Incorporated, San Jose, CA (US);
Abstract
A circuit is provided to transfer data between a first data bus section operating on a first supply voltage and a second data bus section operating on a second, different supply voltage. The circuit includes a first circuit path and a second circuit path each coupled to receive a data signal from one data bus section and to drive the other data bus section. Each of the first and second circuit paths includes a delay circuit, a flip flop, a logic circuit providing an AND function and an output driver circuit. In operation, when the data signal received on one of the first and second data bus sections has a first logical value, an output driver signal of the respective circuit path is asserted and the output driver circuit drives the other data bus section to the first logical value in response to the output driver signal.