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Issued patent
SpaceCube v2.0 Processor with DDR2 Memory Upgrade
An issued NASA patent from the Technology Transfer catalog.
About this technology
Overview
The DDR SDRAM memory dies that had been radiation tested and flight qualified have reached end of life. The remaining stock of DDR SDRAM is rapidly dwindling and future projects will require a change to DDR2 SDRAM. Additionally, the next generation of instruments are set to produce even greater amounts of science data and require even more memory bandwidth for on-board processing. Switching to DDR2 improves support for new instruments because it can provide more than a 2x memory speedup over the DDR1 design.