Title :
Apertured sheet read-only memory
Author :
Miller, J.C. ; Wine, C.M.
Author_Institution :
RCA Laboratories, Princeton, NJ, USA
fDate :
12/1/1966 12:00:00 AM
Abstract :
The technical feasibility of a simple, high-performance, read-only memory (ROM) has been demonstrated. This memory uses apertured sheets of doctor-bladed linear ferrites with printed information patterns. It offers favorable sense-signal/drive-current ratios, low current-level electronics, one diode/word decoding matrix, straightforward fabrication, and compact construction. A prototype memory of 32 words, each of 36 bits, has been successfully demonstrated with a 50-ns cycle time (20-Mc repetition rate). A large ROM of 128 words, 50 bits each, was also operated satisfactorily.
Keywords :
Ferrite devices; Read-only memories; Apertures; Copper; Fabrication; Ferrites; Joining processes; Magnetic cores; Magnetic materials; Prototypes; Read only memory; Signal detection;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1966.1065970
