Patent ID: 7345510
Filing Date: 2008-03-18
Classification: H03K

Abstract:
1. An integrated circuit comprising: a first logic one reference signal generator; a second logic one reference signal generator; a voltage range router selectively operative to route an input signal to one of: the first logic one reference signal generator and the second logic one reference signal generator based at least on a voltage level of the input signal; wherein the first logic one reference signal generator is selectively operative to generate a first logic one reference signal when the voltage level of the input signal is less than a threshold value; wherein the second logic one reference signal generator is alternatively operative to generate a second logic one reference signal when the voltage level of the input signal is greater than or equal to the threshold value; and wherein each of the first logic one reference signal generator, the second logic one reference signal generator and the voltage range router comprises one or more integrated circuit components each having at least two terminals and wherein a maximum voltage difference between any two terminals of each integrated circuit component does not exceed a voltage level of the first logic one reference signal plus a predetermined tolerance.