Semiconductor memory device having a pad arrangement with reduced occupying area

摘要

On a surface of a semiconductor chip having a longer side and a shorter side, a line of a plurality of first pads and a line of a plurality of second pads are arranged in the shape of a cross. Upon multibit expansion, increase in length of the longer side of semiconductor chip can be suppressed even though the number of pads is increased by additionally providing the second pad. In addition, there is no need to reduce the pitch between pads. Thus, a semiconductor memory device allowing multibit expansion is provided without an increase in size of the chip and the pad or reduction in pitches between pads and between pins.