RAPID SINGLE FLUX QUANTUM PROGRAMMABLE GATE ARRAY

摘要

A configurable logic block (10) comprising rapid single flux quantum (RSFQ) superconducting circuitry comprises first and second input arrangements (12,14) connected to an imput selector (16). The input selector is connected to an address decoder (18) for a look-up table (LUT) (20). An output of the LUT is connected via an output selector (22) to output arrangements (24,26). An interconnect resource enables uni-directional propagation of RSFQ pulses between adjacent blocks in an array of blocks.