Multi-bit flip-flop generation considering multi-corner multi-mode timing constraint

Abstract

Clock power is a significant portion of chip power in System-on-chip (SoC). Applying Multi-bit flip-flop (MBFF) is capable of providing attractive solution to reduce clock power. To our best knowledge, this is the first work in the literature that considers multi-corner and multi-mode (MCMM) timing constraint for the MBFF generation. This proposed method is applied to five industrial digital intellectual property (IP) blocks of state-of-the-art System-on-chip (SoC). Experimental results show that our proposed MBFF generation algorithm achieves 22% clock power reduction.