Nonoverlapping Cuspid-Pulsed Flip-Flop

This paper presents novel nonoverlapping cuspid-pulsed flip-flop, which consists of a cuspid-pulse generator and a domino-like latch. The cuspid-pulse generator supplies the domino-like latch with nonoverlapping negative and positive cuspid-shape pulses. The flip-flop allows the elimination of the second stage in the conventional semi-dynamic pulse-based flip-flops, leading to a significant reduction of data-to-output latency. The simulation results using a 65 nm CMOS process technology indicate that the data-to-output delay of the proposed flip-flop was decreased by up to 63%. They also indicate that the improvement on energy-delay product was up to 75% as compared to the conventional flip-flops.