The XCG is an off-the-shelf clock generator solution provided by several leading IC companies for a broad range of high performance clocking interface applications. The XCG revision 1.0 is based on the collaborative work between Rambus and XCG suppliers. Extensive in-system testing and demanding qualification efforts have led to the refinement of the XCG specification and resulted in a clock generator that is ready to support mass production of high frequency XDR systems for graphics processing, consumer electronics, and computing applications.
The XDR Clock Generator supports the complete XDR memory subsystem as well as the industry's fastest processor bus interface, the 400 MHz to 8.0 GHz Rambus FlexIO(TM), by using a reference clock input with or without spread spectrum modulation. Major XCG components include a phase lock loop, a bypass multiplexer and four differential output buffers.
"The latest version of the Rambus XDR Clock Generator represents a state-of-the-art clocking solution that meets the high performance, high bandwidth requirements of today's most demanding applications such as graphics processing and consumer electronics," said David Nguyen, vice president of engineering at Rambus Inc. "As a vital component of XDR DRAM technology, XCG supports a total memory system solution that achieves an order of magnitude higher performance than today's standard memories."
Contained in a 28-pin TSSOP package that includes four differential clock outputs, the XCG features:
The XCG for use in systems that incorporate Rambus' XDR memory solutions is available from the following leading manufacturers: Cypress Semiconductor Corporation, IDT (Integrated Device Technology, Inc.), and Texas Instruments Incorporated. For more information on the complete XDR memory solution including the XCG, the XDR I/O (XIO) controller interface cell to XDR-based DRAM memory and the XDR memory controller (XMC), please visit www.rambus.com.
About Rambus Inc.
Rambus is one of the world's premier technology licensing companies specializing in the invention and design of high-speed chip interfaces. Since its founding in 1990, the company's patented innovations, breakthrough technologies and renowned integration expertise have helped industry-leading chip and system companies bring superior products to market. Rambus' technology and products solve customers' most complex chip and system-level interface challenges enabling unprecedented performance in computing, communications and consumer electronics applications. Rambus licenses both its world-class patent portfolio as well as its family of leadership and industry-standard interface products. Headquartered in Los Altos, California, Rambus has regional offices in North Carolina, India, Germany, Japan and Taiwan. Additional information is available at www.rambus.com.