Design and optimization of dual-threshold circuits for low-voltage low-power applications
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Architecture and CAD for Deep-Submicron FPGAs
Architecture and CAD for Deep-Submicron FPGAs
Architecture evaluation for power-efficient FPGAs
FPGA '03 Proceedings of the 2003 ACM/SIGDA eleventh international symposium on Field programmable gate arrays
A Flexible Power Model for FPGAs
FPL '02 Proceedings of the Reconfigurable Computing Is Going Mainstream, 12th International Conference on Field-Programmable Logic and Applications
Implications of technology scaling on leakage reduction techniques
Proceedings of the 40th annual Design Automation Conference
Evaluation of low-leakage design techniques for field programmable gate arrays
FPGA '04 Proceedings of the 2004 ACM/SIGDA 12th international symposium on Field programmable gate arrays
Active leakage power optimization for FPGAs
FPGA '04 Proceedings of the 2004 ACM/SIGDA 12th international symposium on Field programmable gate arrays
Low-power FPGA using pre-defined dual-Vdd/dual-Vt fabrics
FPGA '04 Proceedings of the 2004 ACM/SIGDA 12th international symposium on Field programmable gate arrays
Reducing leakage energy in FPGAs using region-constrained placement
FPGA '04 Proceedings of the 2004 ACM/SIGDA 12th international symposium on Field programmable gate arrays
Low-power 3D nano/CMOS hybrid dynamically reconfigurable architecture
ACM Journal on Emerging Technologies in Computing Systems (JETC)
GlitchLess: dynamic power minimization in FPGAs through edge alignment and glitch filtering
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Variability-aware architecture level optimization techniques for robust nanoscale chip design
Computers and Electrical Engineering
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In this paper we propose a dual-Vt FPGA architecture for reduction of subthreshold leakage power. A CAD flow has been proposed based on the dual-Vt assignment algorithm and placement for realizing the dual-Vt FPGA architecture. Logic elements within the logic blocks are the candidates for dual-Vt assignment. We propose an architecture in which there are two kinds of logic blocks, one with all high-Vt logic elements and another with a fixed percentage of high-Vt logic elements. These two kinds of logic blocks are then placed in such a way that the FPGA architecture remains regular. Results indicate that in the ideal case of dual-Vt assignment, over 95% of the logic elements can be assigned high-Vt. Results show that leakage savings of 55% can be achieved. Design tradeoffs for various ratios of the two kinds of logic blocks are investigated. The dual-Vt FPGA CAD flow is intended for development and evaluation of dual-Vt FPGA architectures.