CMOS High-Speed I/Os - Present and Future

High-speed I/O circuits, once used only for PHYs, are now widely used for intra-system signaling as well because of their bandwidth, power, area, and cost advantages. This technology enables chips with over 1 Tb/s of I/O bandwidth today and over 10 Tb/s of bandwidth by 2010 as both signaling rates and number of high-speed I/Os increase with process scaling. Key technologies that enable this growth in I/O performance include low-jitter clock circuits and equalized signaling. An analysis of clock jitter and channel interference suggests that signaling rates should track transistor performance to rates of at least 40 Gb/s over boards, backplanes, and short-distance cables.

• Type: Conference
• Year: 2003
• Where: ICCD
• Authors: M.-J. Edward Lee, William J. Dally, Ramin Farjad-Rad, Hiok-Tiaq Ng, Ramesh Senthinathan, John H. Edmondson, John Poulton
• Keywords: Hardware, I/O Bandwidth, I/O Performance, ICCD 2003, Intra-system Signaling