Low power data-driven dynamic logic circuits
Date of Issue2014
School of Electrical and Electronic Engineering
Dynamic Logic is used in high performance circuit designs for its high speed and less transistor needed to implement a same function compared to Static Logic. Data-Driven Dynamic Logic utilizes input data to replace clock signal as control of pre-charge and evaluation phase. By elimination the clock, less power consumption can be obtained without speed degradation. In this project, Data-Driven Dynamic Logic is undertaken to design CMOS circuits concentrating on power and speed performance. Full Adders are designed with D3L technique and Domino, NP-CMOS circuit techniques to compare the performance trade-offs. 4-bit Ripper Carry Adder, 4-bit Kogge-Stone Adder and 16-bit Kogge-Stone adder are also implemented and simulated using Cadence Virtuoso software. The results show that Data-Driven Dynamic Logic circuits are able to work under low supply voltage. For simple basic logic, D3L logic may save power at the cost of longer pre-charge time. When Data-Driven Driven Dynamic Logic is applied to 16-bit Kogge-Stone Adder, the advantage becomes evident that it is 13% faster and the power consumption is 15% lower.
DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits