Phase-mode pipelined parallel multiplier - Applied Superconductivity, IEEE Transactions on
نویسندگان
چکیده
We propose a pipelined parallel multiplier in phase-mode logic. The multiplier can be composed of combinations of gates which are the basic devices ofthe phasemode logic. Experimental operations of the ICF gate and the Adder cell for the multiplier are reported. The proposed multiplier has a Wallace-tree structure comprising trees of carry save adders for the addition of partial products. This structure has a regular layout, hence it is suitable for a pipeline scheme. In the final stage of multiplication, a fast carry lookahead adder is used for generating a multiplication result. Using a Verilog-HDL simulation, we show that the parallel multiplier with 2.5kA/cm2 Nb/AlOx/Nb junctions can operate over 10 GHz. Index Term-multiplier, phase mode, pipeline, single flux quantum,
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