To provide a semiconductor memory device capable of writing a checkerboard pattern for interference and investigation by three writings regardless of the magnitude of memory capacity by making a change of a simple circuit configuration free from the need of a data holding circuit and a voltage converting circuit large in circuit area in a memory array in which the order of arrangement of bits is reversedly arranged between data words adjacent in a row direction. A row decoder and a column decoder are respectively configured to enable operation switching to an all selection mode and an even/odd-based selection mode in addition to a single address selection mode of a memory array by a control signal from a control circuit.