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KB3001
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re: 'Universal' memory? Not exactly...
KB3001   12/8/2010 1:51:14 PM
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Conceptually, it's a great idea but remember: there ain't no such thing as a free lunch. There must be a strong economic argument for universal memories which are essentially a tradeoff as resistion said.

resistion
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re: 'Universal' memory? Not exactly...
resistion   12/1/2010 9:47:05 PM
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"Universal" is a distracting buzzword. "Tradeoff" is more appropriate. Eventually interconnect density vs. speed vs. power tradeoff dominates the memory performance just as for logic. For nonvolatile memory, also need to consider the inherent speed-retention tradefoff.

selinz
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re: 'Universal' memory? Not exactly...
selinz   12/1/2010 6:55:33 PM
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I find it silly to refer to "one universal memory" coming down the horizon. Bubbles were cool because you could actually set up optics to watch bubbles move (perhaps a testimony to their speed?). See http://www.youtube.com/watch?v=0rqPmjmQOxw

Duane Benson
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re: 'Universal' memory? Not exactly...
Duane Benson   12/1/2010 6:19:11 PM
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Anyone remember Bubble Memory? It was going to replace both DRAM and the hard disk. Then there was some talk of EEPROM doing the same. The problem is that the primary requirements for each stand on either sides of a wide divide - cheap enough for mass storage vs. fast enough for processing. By trying to do both with one part, you end up with something that does neither well. I suppose it's logical to assume that someday, we will have a non-volatile memory technology that is both cheap enough to store massive amounts of video and fast enough to hook to a CPU, but I'm not holding my breath.

AlunWang
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re: 'Universal' memory? Not exactly...
AlunWang   12/1/2010 9:49:51 AM
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Is it possible to keep the low power dissipation with universal memory? I think this is also a hard problem.

agk
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re: 'Universal' memory? Not exactly...
agk   12/1/2010 8:15:26 AM
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Universal memory concept is a good area to work with.Evolution of this will make a revolution. Easy to use in consumer and industrail applications



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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