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In this paper we present a low complexity physical IC layout for memory based Real Fast Fourier Transform (RFFT) architecture using 90nm technology. FFT architectures are the most important algorithms in the modern communication systems like and very high bit rate digital subscriber line (VDSL) asymmetric digital subscriber line (ADSL). In this FFT algorithm is based on radix-2 decimation-in-frequency. In order to meet the real time requirements of very large scale integration (VLSI), wedoi:10.35940/ijrte.e6592.018520 fatcat:yysipqv5a5dfzerg7h3fxz4udq