| 摘要 |
PURPOSE:To reduce power consumption and to hold output data stably, by providing a circuit which holds an output level. CONSTITUTION:A toggle flip-flop is composed of logic parts 1 and 2 consisting of a combination of AND and NOR, and circuits 3 and 4 holding levels of outputs Q and Q'. Only in the time zone when the flip-flop performs toggle operation, load transistors T1 and T2 are turned on with signal REF to reduce power consumption, and further levels of outputs Q and Q' are held stably with signal REF and signals RAS and RAS' having certain set phase relation with driving pulses (phi) and (phi'). |
