| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that power is uselessly consumed in a dummy cell and a driving circuit since conventionally the dummy cell is connected at a part where the using number of signals is small and an equal load structure is attained, in order to suppress a signal arrival time difference between distributed signals in the case of distributing the signals by using a macro cell. SOLUTION: In order to match with the signal propagation time of the macro cell in which the number of output terminals is the maximum number, the driving circuit and a load adjusting circuit are constituted and the plurality of macro cells in which the number of the output terminals is different are prepared. Since the macro cell in which the number of the output terminals is not the maximum number can be constituted of fewer driving circuits than that of the macro cells in which the number of the output terminals is the maximum number, power consumption is reduced. Also, since there is no need of using the dummy cell used in a conventional technique, the power consumption of the entire semiconductor device is reduced. Even after the connection of wiring is completed by the macro cell in which the number of the output terminals is different, it can be switched to the macro cell in which the number of the output terminals is smaller. COPYRIGHT: (C)2005,JPO&NCIPI
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