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Abstract—A new READ-only memory design using resistive linear coupling has been developed for high-speed operation. Cost, reliability, and high-speed considerations lead to the use of large-scale integrated resistor matrices. Principles of operation, signal-to-noise ratios, circuits, and memory organization are discussed. The design and fabrication of large-scale integrated resistor matrices is emphasized. Cycle times as fast as 50 and 100 ns have been achieved on 256-word 80-bit modules.