| 摘要 |
The present invention provides a semiconductor memory device for reducing a power consumption and securing an enough valid data window. A semiconductor memory device includes an align control signal generation unit for generating a plurality of align control signals sequentially activated by dividing a data strobe signal only when a data input/output is performed; and a data align unit for outputting a plurality of data which are sequentially inputted as a plurality of align data at the same time in response to the plurality of align control signals.
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