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. 12, 2008
Filed:
Aug. 09, 2005
Kiet Truong, San Jose, CA (US);
Brad Sharpe-geisler, San Jose, CA (US);
Giap Tran, San Jose, CA (US);
Bai Nguyen, Union City, CA (US);
Kiet Truong, San Jose, CA (US);
Brad Sharpe-Geisler, San Jose, CA (US);
Giap Tran, San Jose, CA (US);
Bai Nguyen, Union City, CA (US);
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Abstract
Systems and methods are disclosed herein to provide improved I/O techniques. For example, in accordance with an embodiment of the present invention, an integrated circuit includes a reference circuit adapted to receive a first reference signal and provide a second plurality of reference signals based on the first reference signal, with the reference circuit providing default voltage levels for the second plurality of reference signals if a first control signal is asserted. An input/output circuit, coupled to the reference circuit and to an output driver, receives the second plurality of reference signals to control the output driver to provide an output signal, with the output driver operated with the default voltage levels if the first control signal is asserted.