Investigation of power dissipation for ReRAM in crossbar array architecture

Power consumption of large-scale crossbar array architecture is investigated by the comprehensive crossbar array matrix model. The power dissipation is examined as functions of array size, leakage current of selector, and various bias schemes. The power consumption increases as the array size and the leakage current of selector increases. In addition, 1/3 bias scheme shows power consumption about 1~2 orders of magnitude larger than other bias schemes. This phenomenon is induced from the unselected cells which is delivered with voltage about Vdd/3, whereas the voltage of unselected cells are almost 0 V for 1/2 bias and floating bias schemes.