| 摘要 |
A semiconductor memory device is provided to stably receive data in a high speed operation, by increasing timing margin of receiving data to timing of decoding a command signal. A command input buffer part(100) receives and buffers a command signal, and outputs a sensing signal responding to a write command. A data input enable control part(500) generates a data input enable signal, in response to the sensing signal outputted from the command input buffer part. A data input buffer part(600) receives data inputted from the outside in response to the data input enable signal and then transmits the data to a core region(400). A command decoder(300) decodes a command signal transmitted from the command input buffer part. The core region is for storing data transmitted from the data input buffer part according to the decoding result of the command decoder.
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