| 摘要 |
PURPOSE:To reduce the amount of power consumption by connecting the transistor having the differential working to the common emitter of the differential transistor in the FF circuit as well as to the collector of the highest-step transistor. CONSTITUTION:When the potential of reset input terminal In3 is lower than constant voltage source Vref4, the potential of output terminal 5 is affected by data input terminal In1 and clock input terminal In2. And the FF circuit has working. In case the potential of terminal In3 becomes higher than Vref4, transistor 25 is turned off with transistor 24 turned on each. Thus a low potential is obtained at terminal 5 to secure the reset state. In such constitution, the circuit does not need a number of current sources, thus reducing the amount of power consumption. |
