Title :
Feedback-Switch Logic (FSL): A High-Speed Low-Power Differential Dynamic-Like Static CMOS Circuit Family
Author :
Akl, Charbel J. ; Bayoumi, Magdy A.
Author_Institution :
Univ. of Louisiana at Lafayette, Lafayette
Abstract :
We present a new dynamic-like static circuit family called feedback-switch logic (FSL) that is suitable for high-speed low-power applications. FSL is a derivative of cascode voltage switch logic (CVSL) family. However, it does not suffer from the contention problems of clockless CVSL, and it consumes much less power than clocked CVSL (dual-rail domino). FSL gates offer fast switching, reduced capacitance, and input-switching dependent activity factor without the need of clock connection. An 18-bit majority voting circuit is simulated in a 90-nm technology, in order to compare static, clockless CVSL, dual-rail domino and FSL. Simulation results show that FSL reduces delay by 21% compared to static logic, and offers at least 46% power reduction compared to dynamic dual-rail domino logic with two-phase skew-tolerant clocking.
Keywords :
CMOS logic circuits; circuit feedback; differentiating circuits; high-speed integrated circuits; integrated circuit design; logic design; low-power electronics; capacitance reduction; cascode voltage switch logic family; dual-rail domino logic; dynamic-like static circuit family; feedback-switch logic; high-speed low-power differential CMOS circuit design; size 90 nm; switching dependent activity factor; voting circuit; CMOS logic circuits; Capacitance; Circuit simulation; Clocks; Delay; Feedback circuits; Logic circuits; Switches; Voltage; Voting; circuit family; high-speed; low-power;
Conference_Titel :
Quality Electronic Design, 2008. ISQED 2008. 9th International Symposium on
Conference_Location :
San Jose, CA
Print_ISBN :
978-0-7695-3117-5
DOI :
10.1109/ISQED.2008.4479762
