Multi-threshold flip-flop circuit having an outside feedback

摘要

A multi-threshold flip-flop circuit having an outside feedback is disclosed. The multi-threshold flip-flop circuit comprises a master latch and a slave latch. Coupled between an output of the slave latch and an input of the master latch, a switchable feedback path is utilized to retain logical values of the slave latch during a sleep mode of the flip-flop circuit.