| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a logic element whose power consumption is constant independently of the potential of an input signal line. <P>SOLUTION: In the logic element including a logic arithmetic section 15 for performing a logic arithmetic operation in accordance with the potential of input signal lines 23, 24 and outputting the result of the logic arithmetic operation to an output signal line 25 to make a capacitor 14 store the result, a charge / discharge circuit comprising transistors 11 to 13, a charge control signal line 21, and a discharge control signal line 22 is connected to the output signal line 25, and the charge / discharge circuit charges / discharges the capacitor 14 for a prescribed period independently of the charging / discharging attended with a potential transition of the input signal lines 23, 24 so as to maintain the power consumption constant. <P>COPYRIGHT: (C)2004,JPO</p> |
