The present invention provides a multi-cell organic memory device that can operate as a non-volatile memory device having a plurality of multi-cell structures constructed within the memory device. Routing generally involves a unit of active material that is programmed using one or more input beams or pulses of the electromagnetic radiation providing address and directional information to the active material. Adjacent transverse pairs of side engaging roll combinations are selectively movable relative to each other in a transverse direction perpendicular to a direction of travel of said strip through said mill. The multiplexer is configured to enable a first memory path that routes first data from the second memory port to the data output port during first FIFO read operations that occur when the FIFO memory device is filled beyond a threshold level. In one embodiment, speed is improved by utilizing a parallel loaded buffer register which receives parallel data from the high speed shift register and holds that data during the write operation, allowing the shift register to receive serial loaded data during the write operation for use in a subsequent write operation.