Rad hard high density SRAM for space designs

New Products |
By Nick Flaherty

Infineon Technologies has launched 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).

This is the highest quality and reliability standard certification for aerospace-grade ICs and the radiation hardened external cache memory is suitable for radar, on-board data processing and networking applications in space.

The 144Mbit QDR-II+ SRAM operates up to 250MHz, delivering up to 36 Gbps 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.

Using SRAM reduces the overall system complexity in radar and imaging applications by delivering higher performance that enables on-system satellite image processing with better resolution and faster processing speeds over DRAM for system memory.

“As a leading provider of high-density QDR-II+ SRAMs in the market, our successful QML-V qualification once again exemplifies the inherent product capabilities of our commercial off-the-shelf components to meet the most stringent requirements of high reliability market segments,” said Helmut Puchner, VP Fellow of Aerospace and Defense at Infineon Technologies.

Previous generation parts have already used in space programmes such as the NASA Surface Water and Ocean Topography (SWOT) research satellite mission using Synthetic Aperture Radar technology.

Originally developed as an industrial networking memory, the rad hard QDR-II+ SRAM is used as a baseline design for rad hard memory employing the RadStop technology, Infineon’s proprietary design and process hardening techniques that enable a higher level of radiation performance while delivering the throughput demanded by space-bound applications.

The 144-Mb QDR-II+ SRAM is available now in x18 or x36 bus-width configurations and with on-die-termination in a 2 or 4 word burst mode for design flexibility.

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