Technologies for Low-Power VLSI Design
The main contribution of this research was the discovery of TSEL, the first true single phase energy recovering circuit family, which achieves very efficient operation in comparison with conventional CMOS and other energy recovering circuits.
Abstract
Abstract : This project investigated novel design methodologies for low energy VLSI circuits and systems. It focused on energy recovering circuit architectures, a promising alternative to conventional digital CMOS circuits for low energy operation. It also explored technologies for designing low energy conventional CMOS circuits. The main contribution of our research was the discovery of TSEL, the first true single phase energy recovering circuit family. TSEL achieves very efficient operation in comparison with conventional CMOS and other energy recovering circuits. Due to its extremely simple clocking requirements. TSEL is ideal for high speed design. Moreover, TSEL gates are straightforward to cascade and are thus particularly suitable for the design of energy efficient data path components with regular structures. In the course of this project, we designed, developed, and evaluated layouts of several arithmetic units in TSEL, CMOS and several other energy recovering logic families. Our designs included 8-bit energy recovering multipliers, 8-bit carry look ahead adders, and an 8-point/4-bit Hadamard Transform module.