| 摘要 |
PURPOSE:To reduce the manufacturing cost and to improve the memory function, by providing a mode execution circuit and setting selectively the mode to form the memory having plural read/write modes with the same mask pattern. CONSTITUTION:A cell array 1 where plural memory cells are arranged in matrix is provided, a desired data is read out sequentially from the array 1 based on an address signal applied externally so as to write data in the array 1. In this case, mode executing circuits 8-11 execute plural different read/write systems. A mode selecting set circuit 8 transmits a signal selecting and executing one of the read/write systems. |
