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Technology Stocks : Rambus (RMBS) - Eagle or Penguin -- Ignore unavailable to you. Want to Upgrade?

To: John Walliker who wrote (24281)	7/8/1999 1:42:00 PM
From: J_W	Respond to of 93625

John, Exactly my point. There are very definite limits to where SDRAM can go. The wide bus makes multiple channels difficult. The lack of transmission line characteristics makes higher clock rates difficult. These limitations prevent SDRAM from being scaleable. Yes designing printed circuit boards is going to be more difficult in the short term. They will have to go through a learning curve. But this is not show stopper. The Rambus Channel has a lot in common with coax cable. Both are designed to propagate signals down the line with little or no signal degradation. Since both clock and data are sent together using matched transmission line techniques, there is no skew. Data and clock are always synchronized. SDRAM cannot do this. Regards, Jim

To: John Walliker who wrote (24281)	7/8/1999 1:49:00 PM
From: Tony Viola	Read Replies (1) \| Respond to of 93625

John, very nice post and I agree with everything you say. I'm still getting used to the concept of these 400 MHz now, and, as you say, many GHz in the future, data I/O lines for main memory. I mean, nobody expected the old mainstore, as we used to call it, to be using close to the fastest, or maybe the fastest, signals in the computer. It'll help keep some friends of mine that do EMI testing for FCC, CE, etc. in business for a long time. Speaking of that, may be another additional cost for Rambus equipped machines...sending out for EMI testing as the frequencies get higher and higher. At least it's a one-time thing per model, and maybe had to be done anyhow. Regards, Tony