SEMICONDUCTOR MEMORY CIRCUIT

摘要

There is Provided a semiconductor memory circuit. which is capable of changing the number of bits of one word thereof and of switching between a RAM function and a FIFO function, by an external control signal, changing an effective data length and an effective address length on the basis of the selected bit construction, and counting up the write address or the read address at each writing and read out when -the FIFO function has been selected.