STUDY OF ELASTIC SWITCHING FOR ASSOCIATIVE MEMORY SYSTEMS.
Abstract
Various ferrite materials were tested for elastic switching properties that will increase the speed of associative memory systems. Elastic switching utilizes high-amplitude, narrow-width (50 nsec) read-pulses that permit nondestructive readout. Because of the nondestructive readout, the exclusive-or function can be obtained within the memory. The S/N ratios, output voltages, and maximum speed of operation were studied for various temperatures, bias currents, and read-current drive requirements. Several materials had S/N ratios higher that 2 to 1 in operation under nominal conditions. Changes in temperature up to 70 C did not impair the elastic switching properties. Output voltages varied linearly and in proportion to changes in temperature, approximately 20 percent for most materials for a change from room temperature to 70 C. The S/N ratios were fairly constant to 70 C. The maximum speed of operation was determined as 10 x 10 to the 6th power interrogations per second. The optimum size of an elastic switching memory was also considered. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1964
- Accession Number
- AD0432041
Entities
People
- D. L. Snider
- H. N. Boyd
- J. Suprise
- R. T. Hunt
Organizations
- Goodyear Aerospace