MTCMOS FLIPFLOP CIRCUIT FOR STORING DATA IN SLIP MODE

摘要

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.