Patent ID: 8842491

Claim:
A system for operating a unipolar memory cell array including a bidirectional access diode, the system comprising: a column voltage switch electrically coupled to a plurality of column voltages, the column voltage switch including: a first stage column multiplexer including two input signals and an output signal, such that the output signal of the first stage column multiplexer is electrically coupled to the unipolar memory cell; a second stage column multiplexer including two input signals and an output signal, such that the output signal of the second stage column multiplexer is electrically coupled to one of the two input signals of the first stage column multiplexer; wherein the plurality of column voltages includes at least one select column voltage and at least one deselect column voltage; a row voltage switch electrically coupled to a plurality of row voltages, the row voltage switch including: a first stage row multiplexer including two input signals and an output signal, such that the output signal of the first stage row multiplexer is electrically coupled to the unipolar memory cell; a second stage row multiplexer including two input signals and an output signal, such that the output signal of the second stage row multiplexer is electrically coupled to one of the two input signals of the first stage row multiplexer; wherein the plurality of row voltages includes at least one select row voltage and at least one deselect row voltage; a column decoder electrically coupled to a select line of the first stage column multiplexer and to a select line of the second stage column multiplexer; and a row decoder electrically coupled to a select line of the first stage row multiplexer and to a select line of the second stage row multiplexer.