Solenoid-Coupled READ-ONLY Memory

This paper describes a READ-ONLY memory utilizing the mutual coupling of two solenoids for information storage. The properties of the proposed memory element and the batch-fabricated memory array are discussed. Experimental results on a 256-word, 36-bit-per-word memory stack operating at memory cycle frequency varying up to 10 MHz are reported. A proposed full-size 256-word, 288-bit-per-word, READ-ONLY memory is evaluated together with cost analysis to demonstrate its economic practicability.