qBSA: Logic Design of a 32-bit Block-Skewed RSFQ Arithmetic Logic Unit
qBSA: Logic Design of a 32-bit Block-Skewed RSFQ Arithmetic Logic Unit
Single flux quantum (SFQ) circuits are an attractive beyond-CMOS technology because they promise two orders of magnitude lower power at clock frequencies exceeding 25 GHz. However, every SFQ gate is clocked creating very deep gate-level pipelines that are difficult to keep full, particularly for sequences that include data-dependent operations. This …