DocumentCode
1034412
Title
Apertured sheet read-only memory
Author
Miller, J.C. ; Wine, C.M.
Author_Institution
RCA Laboratories, Princeton, NJ, USA
Volume
2
Issue
4
fYear
1966
fDate
12/1/1966 12:00:00 AM
Firstpage
715
Lastpage
718
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;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1966.1065970
Filename
1065970
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