Patent ID: 6754133
Filing Date: 2004-06-22
Classification: G11C

Abstract:
A semiconductor device comprising:a signal generation circuit which produces a selection signal, wherein said signal generation circuit has a terminal, and said selection signal is determined to have a first state or a second state depending on a voltage applied to said terminal; a first data transfer line for transferring data; a second data transfer line for transferring data; and a memory mat including a plurality of memory cells, said memory mat being coupled to said first and second data transfer lines; wherein a transfer direction of data on said first data transfer line is bidirectional and a transfer direction of data on said second data transfer line is bidirectional, if said selection signal is in said first state, and wherein a transfer direction of data on said first data transfer line is unidirectional and a transfer direction of data on said second data transfer line is, unidirectional, if said selection signal is in said second state.