| 摘要 |
PURPOSE:To supply the electric power only in a desired period, by providing a power supply control unit for each block of semiconductor circuits which are successively actuated. CONSTITUTION:Power supply control units 3-1-3-5 are provided to semiconductor blocks 2-1-2-5 respectively including an address buffer, a decoder, a memory cell, a sense amplifier, an output buffer, etc. of an electronic circuit device such as an electronic memory circuit device 1, etc. These units 3-1-3-4, etc. are controlled by the detection output of input variations obtained by an input variation detecting circuit 4. Then the electric power is supplied to the blocks 2-1-2-4 only in a desired period. This can reduce the power consumption of an electronic circuit device of semiconductor configuration. |
