Patent ID: 7002400
Filing Date: 2006-02-21
Classification: H03K

Abstract:
1. An input circuit for an integrated circuit device, the input circuit comprising: a boosting circuit configured to receive a supply voltage of the integrated circuit device and to generate a boosted voltage higher than the supply voltage; a protection circuit configured to receive an input signal and the boosted voltage and to generate an output signal that changes responsive to changes in the input signal wherein the protection circuit is configured to generate a logic high voltage level output responsive to a logic high voltage level of the input signal, wherein the protection circuit is configured to generate a logic low voltage level output responsive to a logic low voltage level of the input signal, and wherein the logic high voltage level output of the protection circuit is less than the logic high voltage level of the input signal; and a buffer circuit configured to generate a buffered output signal responsive to the output signal generated by the protection circuit wherein a logic high voltage level of the buffered output signal is less than a logic high voltage level of the input signal.