| 摘要 |
<p>PURPOSE:To minimize the power supply capacity to a memory device by using a suppressing circuit which resets an FF of a memory element selection circuit with an incorporated initial condition setting circuit and holds the output given from said element selection circuit until the reset mode is through. CONSTITUTION:When an indication is given to a power supply control circuit 1 for application of the power supply, the power supply of a power supply circuit 2 is applied for generation of a DC power supply. When the DC power supply reaches a standard level, a clock signal, a shift mode designating signal and the shift-in data are applied to a memory element selecting circuit 5 from an initial condition setting circuit 3 via a switch circuit 4. The (n) pieces of FF51-5n of the circuit 5 are reset successively for each arrival of clock. Then all FFs are reset when an action start signal (b) is produced. Thus any of memory element trains of a memory circuit 7 is never actuated even though the gate of a suppressing circuit 6 is opened with the signal (b).</p> |
