4-Bit RCA for Low Power Applications
In this paper, the authors present low power 4-bit Ripple Carry Adder (RCA) using 1-bit full adder. This paper is to provide low power solution for VLSI designers. All pre-layout and post-layout simulations have been performed at 45nm technology on Tanner EDA tool version 12.6. An adder is one of the significant hardware blocks in most digital systems such as digital signal processors and microprocessors etc. Therefore, binary adders are basic building blocks in VLSI circuits and efficient implementation of these adders affects the performance of entire system.