Patent ID: 6201429
Filing Date: 2001-03-13
Classification: H03K

Abstract:
A voltage level shifter circuit comprising:a first switching device (N1), coupled to receive an input signal (Q);a first inverter, the first inverter also coupled to receive the input signal Q and generating a first inverter output corresponding to an inverted polarity of the input signal Q;a second switching device (N2), N2 coupled to the first inverter to receive the inverted polarity of input signal Q; anda cascode clamp device (P1), P1 being coupled in series between N2 and a flying flip-flop, wherein the flying flip-flop is also coupled to the N1 device to thereby generate a flying flip-flop output signal Q' that swings between a first voltage source rail voltage and a second voltage signal limited by the cascode clamp P1.