Patent ID: 8755213

Claim:
A system for operating a bipolar memory cell array including a bidirectional access diode, the system comprising: a column voltage switch including a plurality of column voltages, wherein the column voltage switch includes an output electrically coupled to the bidirectional access diode; wherein the plurality of column voltages includes at least a write-one column voltage and at least a write-zero column voltage; a row voltage switch including a plurality of row voltages, the row voltage switch includes an output electrically coupled to the bidirectional access diode; wherein the plurality of row voltages includes at least a write-one row voltage and at least a write-zero row voltage; a column decoder electrically coupled to a select line of the column voltage switch; a row decoder electrically coupled to a select line of the row voltage switch; and a write driver electrically coupled to a select line of the column voltage switch and the row voltage switch; and wherein the column voltage switch includes a first stage column multiplexer electrically coupled to an output of a second stage column switch, the first stage column multiplexer includes an output electrically coupled to the bidirectional access diode; wherein the second stage column switch is electrically coupled to a third stage column switch, the second stage switch includes a second stage select column multiplexer and a second stage deselect column multiplexer; and wherein the third stage column switch includes a third stage deselect column multiplexer and the plurality of column voltages.