The present invention generally relates to three-dimensional arrangement of memory cells and methods of addressing those cells. The memory cells can be arranged in a 3D orientation such that macro cells that are in the middle of the 3D arrangement can be addressed without the need for overhead wiring or by utilizing a minimal amount of overhead wiring. An individual macro cell within a memory cell can be addressed by applying three separate currents to the macro cell. A first current is applied to the memory cell directly. A second current is applied to the source electrode of the MESFET, and a third current is applied to the gate electrode of the MESFET to permit the current to travel through the channel of the MESFET to the drain electrode which is coupled to the memory element.