Cypress Radiation-Hardened QDR-II+ SRAMs Achieve QML Class V Certification and Deliver Industry's Highest Throughput for Space-Bound Applications

SAN JOSE, CA -- (Marketwired) -- Nov 18, 2014 -- Cypress Semiconductor Corp. (NASDAQ: CY), the static random access memory (SRAM) market leader, today announced its radiation-hardened (RadHard) 72-Mbit Quad Data Rate II+ (QDR®-II+) SRAMs and 4-Mbit fast asynchronous SRAMs have achieved Qualified Manufacturers List Class V and Class Q requirements -- the highest standards of quality and reliability for aerospace-grade ICs.

The 72-Mbit QDR-II+ SRAMs deliver industry-leading throughput performance up to 36 gigabits per second (Gbps) by leveraging the ability to read and write data simultaneously. This throughput, combined with complete random access of data and free memory controllers for FPGAs, enables reconfigurable computing platforms that allow satellites to be reprogrammed while in space. The devices also feature the industry's lowest latency and are ideal for radar and networking applications used in space

Both new SRAM families employ Cypress's patented RadStop™ technology, which enables uncompromised functionality in the face of radiation up to 300 krads. The devices are manufactured in the Cypress's fabrication facility in Bloomington, Minnesota, which is Microelectronics Trusted Category 1A accredited.

"Cypress's radiation-hardened SRAMs demonstrate our commitment to providing QML Class V reliability and superior performance for the aerospace market," said Sam Geha, vice president of the Aerospace and Defense Business Unit at Cypress. "The unmatched throughput of our flagship 72-Mbit QDR-II+ devices enables innovative usages, such as reconfigurable computing, while our 4-Mbit fast asynchronous devices deliver faster speed than any competing solutions."

The radiation-hardened 4-Mbit devices deliver access times of 10 ns at 85 degrees C and 12 ns at 125 degrees C. They are also the first 90-nm, QML-V qualified devices of their kind and are ideal for a wide range of space and military applications.

Cypress's RadStop technology combines manufacturing process hardening and proprietary design techniques. With RadStop technology, the SRAMs deliver single event latch-up immunity and single event functional interrupt immunity at temperatures as high as 125 degrees C. More information on Cypress's Rad-Hard portfolio is available at or by emailing

The Rad-Hard 72-Mbit QDR-II+ SRAMs are available in a 165 column grid array (CGA) package. The devices come in the following four part numbers and configurations with equivalent Defense Supply Center Columbus (DSCC) part numbers:

  • CYRS1542AV18-250GCMB (x18 bus width, burst of 2); Class V part number: 5962F1120101VXA
  • CYRS1543AV18-250GCMB (x18 bus width, burst of 4); Class V part number: 5962F1120102VXA
  • CYRS1544AV18-250GCMB (x36 bus width, burst of 2); Class V part number: 5962F1120201VXA
  • CYRS1545AV18-250GCMB (x36 bus width, burst of 4); Class V part number: 5962F1120202VXA

The CYRS1049DV33-12FZMB (5962F1123501VXA) 4-Mbit fast asynchronous SRAMs are available in a 36-pin ceramic flat package.

Designers can also begin prototyping today with ITAR-free CYPTxx products, which are similar in form, fit and function to the flight units. To order, go to

About Cypress SRAMs
Cypress holds the No. 1 global market share position in SRAMs -- the only memories that deliver the performance, reliability, and long product lifecycles vital to the evolution of the Internet and mission-critical systems everywhere. Built on more than 30 years of experience and a strong IP portfolio, Cypress SRAMs offer the world's best speed and power performance and the highest reliability to meet the requirements of the most-demanding systems. Cypress is also the only vendor to offer products in every SRAM category, including synchronous and asynchronous, dual-port, and nonvolatile. Cypress SRAMs are widely used in networking, industrial, automotive, military/aerospace, and medical systems around the world, and the company is working with customers and partners to innovate new SRAM categories that address the performance demands of tomorrow's Internet and the Internet of Things.

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About Cypress
Cypress delivers high-performance, mixed-signal, programmable solutions that provide customers with rapid time-to-market and exceptional system value. Cypress offerings include the flagship PSoC® 1, PSoC 3, PSoC 4 and PSoC 5LP programmable system-on-chip families. Cypress is the world leader in capacitive user interface solutions including CapSense® touch sensing, TrueTouch® touchscreens, and trackpad solutions for notebook PCs and peripherals. Cypress is a world leader in USB controllers, which enhance connectivity and performance in a wide range of consumer and industrial products. Cypress is also the world leader in SRAM and nonvolatile RAM memories. Cypress serves numerous major markets, including consumer, mobile handsets, computation, data communications, automotive, industrial and military. Cypress trades on the NASDAQ Global Select Market under the ticker symbol CY. Visit Cypress online at

Cypress, the Cypress logo, PSoC, CapSense and TrueTouch are registered trademarks and RadStop is a trademark of Cypress Semiconductor Corp. QDR and Quad Data Rate SRAMs comprise a family of products developed by Cypress, IDT, NEC Electronics, Renesas and Samsung. All other trademarks are the property of their respective owners.

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Samer Bahou
Cypress PR
(408) 232-4552

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