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QDR™II SRAM

Product catalog summary

Overview: Samsung offers a comprehensive range of Quad Data Rate II (QDRII) SRAM solutions, designed for high-speed telecommunications equipment. These solutions range from 167 to 300 MHz in frequencies and 18 to 72 megabits in densities, providing a wide data-valid window that simplifies system design.

Specifications: The QDRII SRAM operates at up to 300 MHz with a power supply of 1.8V, reducing power consumption and heat generation. It is available in a 165-pin FBGA package measuring 13mm by 15mm. The memory supports separate read and write data ports, allowing for independent operations at double data rate, effectively transmitting four data words per clock cycle.

Applications: Samsung's QDRII SRAM is ideal for next-generation communications systems, including high-speed network switches and routers. The technology is based on a common specification developed by the QDR SRAM Consortium and approved by JEDEC in 2002.

Product Evolution: The QDRII+ is an enhanced version supporting higher speeds. Samsung offers 18Mb and 36Mb QDRII+ products, with the evolution of QDR memory technology aligning with increasing network transmission rates.

Product Line: Samsung provides a variety of QDRII SRAM products with different densities and configurations, including 18Mb, 36Mb, and 72Mb options. These products feature access times as low as 0.45 ns and cycle times up to 300 MHz.

Key Features: The QDRII SRAM includes features such as a DLL for wide output, separate independent read and write data ports, synchronous pipeline read with self-timed late write, and DDR interface on read and write ports. The package includes two input clocks for DDR timing and two echo clocks to enhance output data trace.

Conclusion: Samsung's QDRII SRAM solutions are designed to meet the demands of high-speed telecommunications equipment, offering high performance, reduced power consumption, and a range of configurations to suit various applications.

Catalog excerpts

Samsung Semiconductor, Inc. 3655 North First St., San Jose, CA 95134-1713 > The appearance of all products, dates, figures, diagrams and tables are subject to change at any time, without notice. Copyright 2005. Samsung Semiconductor, Inc. is a registered trademark of Samsung Electronics Co. Ltd. All other names and brands may be claimed as the property of others. Microsoft 408-544-4000 408-544-4950 www.usa.samsungsemi.com > ɮ TEL: FAX: and Windows are registered trademarks of Microsoft Corporation.DS-09-SRAM-001 Printed 1/09 size="-2">

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QDR™II SRAM

QDR™II SRAM

Catalog excerpts

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