Alien Technology

GSI Technology designs, develops and markets a broad range of high performance memory products for networking, military, medical, automotive and other applications.

GSI specialize in memory products featuring very high transaction rates, high density, low latency, high bandwidth, fast clock access times, and low power consumption. GSI offer unusually long product support life cycles, short lead times, the largest high performance memory product portfolio in the market and complete pre and post-sale support.

Applications

  • FPGAs and ASIC Applications

    GSI Technology offers SRAMs and Low Latency DRAMs needed for most Stratix, Arria, and Cyclone FPGA, or HardCopy ASIC applications.

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  • High Speed Memory Technology for Cache Applications

    Many processors today use a high speed cache to accelerate memory access. A level 2 or level 3 cache connected on a backside bus can take advantage of high SRAM bandwidth in providing low latency data access. Today’s performance-oriented applications require this type of processor performance boost.

    There are several SRAM options available when implementing cache memory solutions. Notably, the Synchronous Burst, Late Write, and Double Data Rate (DDR) SRAMs. Each protocol has interface peculiarities and advantages. The purpose of this document is to compare and contrast these different SRAM types for cache implementations.

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  • Computer and Netcom Applications

    The most common reason for SRAM memory in computers is to support cache applications. The most common reason for SRAM memory in Netcom is to support buffering and high speed lookup. Each of these applications has different challenges and requirements. Cache tends to be relatively small, and is typically accessed in chunks called bursts. Netcom applications tend to use large memories, which continuously write and read in random patterns.

    GSI's Synchronous Burst/NBT SRAMs bridge the gap between legacy SRAMs designed for computer applications and SigmaRAMs designed specifically to solve Netcom problems.

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  • Networking Applications

    SigmaRAM is a family of SRAM products jointly defined by the SigmaRAM Consortium. The consortium is a collaborative group of leading SRAM manufacturers who have joined together in establishing the industry’s first open standard for networking SRAMs.

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  • Parity and Non-Parity Applications

    GSI's ByteSafe™ technology opens a new front in the battle for highly reliable data. Although parity bit storage has been around for as long as digital memory, learning whether data arrived correctly or if it was lost in storage has remained all but impossible. Today, in networking and communications applications, with so much memory being used outside it's traditional role supporting a general-purpose processor, the wait to discover a written error can become painfully long. ByteSafe™ parity RAMs address this need.

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Products

  • Quad SRAMs

    GSI's SigmaQuad™ SRAMs are the acknowledged leader in the industry with their combination of capacity and performance. SigmaQuad transaction rates are unequaled by any competitors.

    SigmaQuad SRAMs are synchronous memories with separate read and write data buses. “Quad” refers to their ability to transfer 4 beats of data (2 beats per data bus) in a single clock cycle. SigmaQuad memories are ideal for applications that alternate between read and write operations frequently, at operating speeds of 250 MHz and above.
    GSI’s SigmaQuad devices are compatible with all competitor Quad Data Rate SRAMs.

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  • DDR SRAM

    GSI's SigmaDDR™ SRAMs are the acknowledged leader in the industry with their combination of capacity and performance. SigmaDDR transaction rates are unequaled by any competitors.

    SigmaDDR SRAMs are synchronous memories with a common read and write data bus. “DDR” refers to their ability to transfer 2 beats of data on the data bus in a single clock cycle. SigmaDDR memories are ideal for applications that alternate between read and write operations infrequently, at operating speeds of 250 MHz and above.
    GSI’s SigmaDDR devices are compatible with all competitor Double Data Rate SRAMs.

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  • IP Ports

    GSI offers SRAM Interface Port IPs that can be used with Xilinx UltraScale+, UltraScale, and 7 Series FPGAs.

    GSI’s SigmaQuad and SigmaDDR SRAMs are our highest performance SRAMs and as you might expect, with GSI’s SRAM Port IP, users can get faster SRAM performance than ever before. In addition, GSI can configure the IP to a wide variety of memory configurations, beyond what is traditionally available through the Xilinx tools.

    GSI’s SRAM Port IP supports:
    Burst of 4 Separate I/O Quad operations for x18 and x36 data bus width
    Burst of 2 Separate I/O Quad operations for x18 and x36 data bus width
    Burst of 2 Common I/O DDR operations for x18 and x36 data bus width

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  • Low Latency DRAMs

    GSI's Low Latency DRAM (LLDRAM) is an ideal solution for advanced data networking applications. Its low Random Cycle Time (tRC), eight-bank memory array architecture, and double data rate transfers enable a level of performance unmatched by commodity DRAM. And its SRAM-like address interface makes it much easier to use. The result is a device that can maintain near-100% bus utilization for many networking tasks.

    GSI's LLDRAM devices are ideal for 10GbE, 40GbE and 100GbE packet buffering and inspection tasks. They are the technology of choice on a variety of Network Processor Units and FPGA Architectures.

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  • NBT SRAMs

    GSI Technology’s No Bus Turnaround (NBT™) product portfolio is the largest in the industry with six different densities in x18, 32, 36 and 72 bit widths. Our NBT SRAMs provide the fastest clock rates and lowest power of any in the world.

    NBT SRAMs are synchronous, burst-capable memories with a simplified interface that is designed to use a data bus’s maximum bandwidth. NBT devices do not require “turnaround” cycles (idle clock cycles between a read and write operation). NBT SRAMs are used in networking, industrial, automotive and medical imaging applications where a mid-range performance point (typically a 333–166 MHz clock rate) is required.

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  • SyncBurst SRAMs

    GSI offers the broadest portfolio of Synchronous Burst (SyncBurst™) SRAMs in the industry. Our SyncBurst SRAMs provide the fastest clock rates and lowest power of any in the world.

    SyncBurst SRAMs provide a “burst” of (typically) 2 to 4 words in response to a single clock signal. SyncBurst SRAMs are used in networking, industrial, automotive and medical imaging applications where a mid-range performance point (typically a 333–166 MHz clock rate) is required.

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  • Specialty SRAMs

    GSI Technology’s Specialty SRAMs fill the gap left when other SRAM companies left the industry. Our Register-to-Register, Late Write, and Double Late Write SRAMs have enabled critical designs to continue long after all other options were made obsolete.

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  • Asynchronous SRAMs

    GSI Technology’s Asynchronous SRAM portfolio can handle all of your design needs. Our asynchronous SRAMs are easy to use, have fast access times, and are available in a variety of packages.

    Asynchronous SRAMs are appropriate as main memory for small cache-less embedded processors used in industrial electronics, measurement systems and cost-sensitive networking equipment, among many other applications.

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  • Bandwidth Engine

    The Bandwidth Engine® architecture is a highly parallel, multi-bank, multi-ported 1T-SRAM based memory array coupled with a high efficiency serial interface and on-board functionality, delivering intelligent scheduled access in addition to the highest memory transaction rate, table read rate and data throughput of any single chip device.

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