RTR, the number of fully random memory accesses per second, is the critical memory performance metric for increased line card and switching rates. Leveraging the high RTR and low latency of Cypress QDR-IV SRAMs, the ExaLINK Fusion performs conventional layer 2 switching at 110 nanoseconds -- the industry's lowest latency, which represents a 2X to 3X improvement over the next best solution in the market. The platform uses two QDR-IV SRAMs per board for buffering and packet storage. QDR-IV SRAMs are the memory of choice for latency-sensitive applications within a variety of industries, including networking, FPGA-based trading platforms, high-performance computing and defense systems.
"Cypress's QDR-IV SRAM provides the high-RTR, low-latency and high-bandwidth that we wanted in order to achieve leading performance targets for our ExaLINK Fusion switch," said
"QDR-IV offers a significant performance increase over other memory solutions and will play a key role in enabling next generation switches and routers operating at 100G and beyond," said
The bottleneck for reaching increased line card rates is the processing of look-up tables, statistics and state counters stored in memory, as well as scheduling functions. QDR-IV devices deliver the RTR required to support these functions, enabling higher bandwidth and higher quality video streams. Cypress's QDR-IV SRAM is capable of operating in burst-of-two (High Performance) or banked burst-of-two (Xtreme Performance) modes, delivering the fastest clock speeds and highest RTR of all QDR SRAMs. The banked burst-of-two mode can be operated at a maximum frequency of 1,066 MHz with an RTR of 2,132 million transactions per second (MT/s), while the standard burst-of-two mode can be operated at a maximum frequency of 667 MHz and an RTR of 1,
Cypress offers QDR-IV SRAMs in 144- and 72-Mb densities. The 144-Mb CY7C41xxKV and 72-Mb CY7C40xxKV QDR-IV SRAMs are shipping in production quantities today and are available in a 361-ball Flip Chip Ball Grid Array (FCBGA) package.
QDR-IV SRAMs are the market's highest performance, standardized networking memories. QDR-IV was developed in the QDR consortium, whose members jointly define
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
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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
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