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Pulsed-Latch Replacement Using Concurrent Time Borrowing and Clock Gating

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2 Author(s)
Chih-Long Chang ; Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Jiang, I.H.

Flip-flops are the most common form of sequencing elements; however, they have a significantly higher sequencing overhead than latches in terms of delay, power, and area. Hence, pulsed latches are a promising option to reduce power for high-performance circuits. In this paper, to save power and compensate for timing violations, we fully utilize the intrinsic time borrowing property of pulsed latches and consider clock gating during pulsed-latch replacement. Experimental results show that our approach can generate very power efficient results.

Published in:

Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:32 ,  Issue: 2 )