QDR-II+ SRAM reduces system complexity in space applications

Infineon Technologies LLC, an Infineon Technologies AG company, has introduced its next-generation 144-Mb Quad Data Rate II+ (QDR-II+) SRAM that is certified to the DLA Qualified Manufacturers List Class V (QML-V) for aerospace-grade ICs. The radiation-hardened (rad hard) 144-Mb QDR-II+ SRAM is a high-speed external cache memory, targeting radar, on-board data processing, and networking applications in space.

The 144-Mb QDR-II+ SRAM operates up to a maximum frequency of 250 MHz, delivering up to 36 Gbits/s throughput in a 165-ball ceramic column grid array (CCGA) package. The device is rad hard for up to 200 krad (Si) and is latch-up immune, improving system reliability in harsh environments.

The memory device reduces the overall system complexity in radar and imaging applications to enable on-system satellite image processing with better resolution and faster processing speeds, as compared to DRAM with higher latency and memory bank restrictions, according to the company.

Previous generations of rad-hard QDR-II+ SRAMs have been adopted in a variety of space programs including NASA Surface Water and Ocean Topography (SWOT) research satellite mission using Synthetic Aperture Radar technology.

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The 144-Mb QDR-II+ SRAM is available in x18 or x36 bus-width configurations and with on-die-termination in a two- or four-word burst mode.