Superconducting Technology Assessment - nitrd

Stand-alone Cryogenic MRAM
Whether the MRAM is embedded in a superconductive logic circuit or in a stand-alone RSFQ-MRAM chip, the
general considerations for designing MRAM for low-temperature operation are identical to those outlined in the
previous section. The ideal way to approach this would be to start with the best MRAM technology available at the
time, MTJ or SMT-based, and modify it for lower power operation at low temperatures. At a minimum, a custom
circuit design and optimized devices would be needed, as well as a program for performance characterization at
the temperatures of interest.
The use of stand-alone memory would require a high-speed interface/bus between the RSFQ processors and the memory.
We acknowledge the contribution of Jon Slaughter, Freescale Semiconductors, Inc. in preparing the tutorial on MRM.
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