| 摘要 |
A semiconductor memory integrated circuit having an X-row controller which includes a high-speed-operation control circuit by which when receiving a bank active signal, a period for stopping a latch circuit from receiving the X address is produced after a predetermined time has elapsed, and in the other periods, the latch circuit receives and holds the X address; a low-current-operation control circuit by which when receiving no bank active signal, the latch circuit stops receiving the X address, and when receiving the bank active signal, the latch circuit holds the X address after a predetermined time has elapsed; a circuit for selecting whether the bank active signal is output to the high-speed-operation control circuit or the low-current-operation control circuit; and a circuit for selecting whether the latch-circuit control signal from the high-speed-operation control circuit or the latch-circuit control signal from the low-current-operation control circuit is output to the latch circuit. |
