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:
Jul. 09, 2013
Filed:
Aug. 08, 2008
Vani Deshpande, Karnataka, IN;
Anuroop Iyengar, Karnataka, IN;
Pramod Elamannu Parameswaran, Karnataka, IN;
Pankaj Kumar, Karnataka, IN;
Vani Deshpande, Karnataka, IN;
Anuroop Iyengar, Karnataka, IN;
Pramod Elamannu Parameswaran, Karnataka, IN;
Pankaj Kumar, Karnataka, IN;
LSI Corporation, San Jose, CA (US);
Abstract
A high voltage input receiver with hysteresis using low voltage transistors is disclosed. In one embodiment, an input receiver circuit includes a hysteresis comparator circuit, based on a plurality of low voltage transistors, for generating a first output voltage by comparing an external voltage and a reference voltage and a stress protection circuit for preventing the plurality of low voltage transistors of the hysteresis comparator circuit from exceeding their reliability limits. In addition, the reference voltage is used to set a positive trip point and a negative trip point. Moreover, the input receiver circuit includes a source follower circuit for transferring the first output voltage to an output node of the source follower circuit from a voltage level of a VDDIO to a voltage level of a VDD.