| 摘要 |
PURPOSE:To reduce the number of element and cross wirings and to store the data stably, by constituting FF circuit with two sets of latch circuits in connection. CONSTITUTION:In the D type FF circuit fo master slave type, constituted with the connection of the latch circuits 1, 2 consisting of MOS transistors, by using the depletion type MOS transistor T1 as the fedback transfer gate 13' of the latch circuit 1', the gate is connected to the output terminal of the feedback inverter 12 consisting of the depletion type load MOS transistor T2 and the enhancement type driver MOS transistor T3. R-SFF circuit is constituted by using the FF circuit 5 thus constituted, and the saturation current of the transistor T1 and T2 is taken greater than the leakage current of the transfer gates 61 and 62 respectively, then the terminal D stores the data stably. Further, with this constitution, the number of elements is reduced and the cross wirings can be avoided. |
