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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: grok who wrote (67325)8/2/1999 1:13:00 PM
From: Tenchusatsu  Read Replies (1) | Respond to of 1574122
 
<Huh? Dan, have some more coffee. It doesn't take twice as many drdrams just because they are on two channels. If you're using 128Mbit chips and you want 64MBytes then put two chips on each channel.>

I think Timna has only one DRDRAM channel. I'm not certain, but two DRDRAM channels doesn't make sense for a low-end product like Timna. So in your example above, in order to get 64 MB with 128 Mbit technology, you solder four DRDRAM chips onto the single channel. With 256 Mbit technology, the chip count drops to two.

I think you might be confused with Sony's Emotion engine (Playstation II), which will feature two DRDRAM channels and one 128 Mbit chip soldered on each channel for high bandwidth and low cost.

Tenchusatsu



To: grok who wrote (67325)8/2/1999 8:10:00 PM
From: Dan3  Read Replies (2) | Respond to of 1574122
 
Re: It doesn't take twice as many drdrams on two channels

Why would you not need the whole DRDRAM module component set for each channel? Controller, 128 sets of DRAM cells (that would be integrated into far fewer die) and connections to them. Without the whole set, how are you going to talk to the other end of each channel on tinma?

Maybe I'm missing something here (I was coding to 2AM last night on a project deadline - I'm a bit fuzzy :-(

Dan