Abstract: The carry-select method has deemed to be a good compromise between cost and performance in carry propagation adder design. However, the conventional carry-select adder (CSL) is still ...

Abstract: In this article, 8-bit bit-slice butterfly processing units (BPUs) are proposed for 64-point rapid single-flux-quantum (RSFQ) fast Fourier transform processors. The BPUs are based on radix-2 ...