Infineon simplifies satellite image processing with QDR-II+ SRAM

Claimed to be the industry’s highest density QML-V-certified QDR-II+ SRAM, Infineon has released its next-generation 144Mbit Quad Data Rate II+ (QDR-II+) SRAM which is certified to the DLA Qualified Manufacturers List Class V (QML-V). QML-V is the highest quality and reliability standard certification for aerospace-grade ICs.

According to Infineon, the QDR-II+ SRAM reduces the overall system complexity in radar and imaging applications by delivering higher performance than using DRAM which has higher latency and memory bank restrictions.

The radiation-hardened, high-speed external cache memory is suitable for radar, on-board data processing and networking applications in space.

The QDR-II+ 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, says Infineon.

Qualification to QML-V “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, vice president fellow of aerospace and defence at Infineon Technologies.

Earlier generations of the rad-hard QDR-II+ SRAMs, developed by Cypress Semiconductor which was acquired by Infineon in 2019, have been adopted in NASA’s 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 uses RadStop, 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-Mbit QDR-II+ SRAM operates up to a maximum frequency of 250MHz, delivering up to 36Gbits per second throughput in a 165-ball ceramic column grid array (CCGA) package. The device is rad-hard for up to 200krad(Si) and is latch-up immune.

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

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