A system includes a first circuit, a second circuit including a logic circuit, and a bus interconnecting the first and second circuits to each other so that the second circuit accesses the first circuit to perform a data transfer therebetween, wherein the first circuit includes a first sense amplifier array including a plurality of first sense amplifiers that are arranged in a first direction, each of the first sense amplifiers including first and second nodes; and a plurality of first global bit lines each extending in a second direction crossing the first direction, the first global bit lines being arranged in the first direction on a left side of the first sense amplifier array so that each of the first global bit lines being operatively connected to the first node of an associated one of the first sense amplifiers.