| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a flip-flop(FF), circuit which can be constituted as a high- density semiconductor integrated circuit(IC) and operates relatively fast with a low power consumption. SOLUTION: Flip-flop circuits FF1 to FF6 are constituted by arbitrarily combining and cascading a couple of latch circuits L1 and L2. The latch circuits L1 and L2 respectively an input-stage Push-Pull circuit PP, composed of a hold circuit HD as an output-stage CVSL. The input stage of the larch circuit L1 is composed of two couples of series-parallel connected nMOSTs 2 to 5 which input input data DP and DN respectively and a couple of nMOSTs 1 and 6, which are connected to both sides of the series-parallel circuit and input a clock CP. Furthermore, the output-stage hold circuit HD is composed of a CVSL circuit, consisting of two couples of nMOSTs 7 to 10 and a couple of pMOSTs 12 and 13 and an nMOST 11 which inputs a clock CN.</p> |
