A solid-state image sensor includes a photocell array for accumulating signal charge for each pixel in accordance with progress of exposure, and a read circuit for reading out information on the accumulated signal charge from the photocell array. The functional circuit may operate with one of two power supply voltages. There are provided a plurality of interconnections connected via contacts to the diffusion regions of other divisions in the plural matrix-like divisions lying on the line of extension of the aforementioned diagonal line. At this time, the command cycle satisfies the relationship: SNF.