Abstract:
본 발명은 삼상 버퍼에 관한 것으로서, 더 구체적으로는 구동력 향상을 위해 트랜지스터의 사이즈를 증가시켜도 레이 아웃 면적을 최소화할 수 있는 삼상 버퍼에 관한 것으로서, 인에이블 신호를 반전시키기 위한 제 1 인버터와; 입력 신호와 상기 인에이블 신호를 조합하기 위한 노어 회로와; 상기 입력 신호와 상기 제 1 인버터를 통해 반전된 신호를 조합하기 위한 낸드 회로와; 상기 노어 회로의 출력을 반전시키기 위한 제 2 인버터와; 상기 낸드 회로의 출력을 반전시키기 위한 제 3 인버터와; 상기 제 2 인버터와 제 3 인버터의 출력을 인가받아 상기 입력 신호와 반대레벨을 갖는 신호를 구동하기 위한 구동 회로를 포함한다.
Abstract:
PURPOSE: A MTCMOS flipflop circuit for storing data in a slip mode is provided to maintain a state prior to a slip mode in a switching process of the slip mode to an active mode by adding a feedback circuit to an existing flipflop circuit to utilize only a slip mode control signal. CONSTITUTION: A MTCMOS flipflop circuit for storing data in a slip mode includes a master latch and a slave latch to receive, latch, and output input data according to an internal clock signal. An output of the MTCMOS flipflop circuit is in the state prior to the slip mode in a switching process of the slip mode to an active mode by forming and storing a data state of an input terminal of the master latch corresponding to a data inverting state of an input terminal of the slave latch in the slip mode. The MTCMOS flipflop circuit further includes a switching transistor connected between the virtual ground and the ground. The switching transistor is turned on by a slip mode control signal in the slip mode. In addition, the switching transistor is turned off by the slip mode control signal in an active mode.
Abstract:
PURPOSE: A D flip-flop is provided to reduce the power consumption by cutting off the current path of an inverter directly connected to an input terminal when a control signal becomes inactive. CONSTITUTION: A three state buffer(TSG1) has first and second control terminals(GL, GB) and controls a transfer path of data inputted through a data input terminal(D). A latch circuit(10) is connected to the three state buffer(TSG1) and has a latch output terminal. The three state buffer(TSG1) cuts off the data transfer path when the latch circuit(10) maintains prior data by the first and second control terminals(GL, GB). The latch circuit(10) is constituted with inverters(INV8, INV9) and a transfer gate(TG3). The input terminal of the inverter(INV9) is connected to the output terminal of the inverter(INV8).