Title :
Adaptive performance control with embedded timing error predictive sensors for subthreshold circuits
Author :
Fuketa, Hiroshi ; Hashimoto, Masanori ; Mitsuyama, Yukio ; Onoye, Takao
Author_Institution :
Dept. Inf. Syst. Eng., Osaka Univ., Suita, Japan
Abstract :
This paper presents an adaptive technique for compensating manufacturing and environmental variability in subthreshold circuits using ¿canary flip-flop¿ that can predict timing errors. A 32-bit Kogge-Stone adder whose performance was controlled by body-biasing was fabricated in a 65 nm CMOS process. Measurement results show that the adaptive control can reduce the power dissipation by 46% in comparison with the worst-case design with guardbanding.
Keywords :
CMOS integrated circuits; adaptive control; adders; flip-flops; timing; CMOS process; Kogge-Stone adder; adaptive performance control; body-biasing; canary flip-flop; embedded timing error predictive sensors; environmental variability; manufacturing variability; size 65 nm; subthreshold circuits; timing errors; Adaptive control; Adders; CMOS process; Circuits; Error correction; Power dissipation; Power measurement; Programmable control; Pulp manufacturing; Timing;
Conference_Titel :
Design Automation Conference (ASP-DAC), 2010 15th Asia and South Pacific
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-5765-6
Electronic_ISBN :
978-1-4244-5767-0
DOI :
10.1109/ASPDAC.2010.5419861
