To reduce a noise without completely degrading a high speed characteristic.

When two data of double data specification outputted from the same output terminal at the same cycle are read out from a memory cell array, by providing a delay circuit at one side of a sense amplifier enable-signal /SAE, a sense amplifier 1 and a sense amplifier 2 are activated, timing at which two data are sensed is deviated, peak current flowing in the sense amplifier 1 and the sense amplifier 2 is deviated. Furthermore, a generation level of a noise can be reduced without completely degrading read-out speed by making a deviation time a half cycle of an operation clock or less.