| 摘要 |
PURPOSE: A data input/output circuit for a semiconductor memory is provided, which minimizes a load of a data line for transmitting data of a semiconductor memory cell to a sense amplifier. CONSTITUTION: The data input/output circuit for a semiconductor memory comprises: memory units (21, 22) for selecting a corresponding cell by a column address and a row address; transmission gates (23, 24) for transmitting data of the selected cell of memory units (21, 22); a sense amplifier (25) for amplifying data transmitted from transmission gates (23, 24); and a writ driving unit (26) for writing an external data to the selected cell of memory units (21, 22). Thereby, it is possible to improve the performance of the sense amplifier and prevent the performance decrease of the sense amplifier.
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