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:
Feb. 12, 2002
Filed:
Aug. 09, 2000
John Deane Coddington, Cedar Park, TX (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A high performance high input voltage input buffer manufacture using a low voltage process contains an input buffer circuit ( ) and a level shifter ( ). The input buffer ( ) will receive an input signal via a chip pad ( ). The input signal from trip pad ( ) will be provided to an inverter stack ( ) that contains or is coupled to protection transistors ( and ). The protection transistors are biased by a reference generator ( ) which outputs a voltage that is a function of the maximal voltage that can be provided on the chip pad ( ). By using the circuit ( ), the trigger point of the inverter stack ( ) can be dynamically adjusted for any OVDD ( ) value whereby input buffer performance is improved and made more flexible.