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RE: ??: [oc] blabla EPROM vsFLASH, kazaam how much?, kazaam how much?
Mathias,
I've been, I've seen, I found the price and sat down again. 2Mbyte SRAM for $130+
dollars egh? I must be in the wrong business, true for new behemoth designs I have
plans for then four of this can be accommodated no problem in the final $18K price
but my first ones are trying to stay under $50. I will keep a note of them though
mate, if you find some cheaper ones, even say 512K models please let me know.
Plus faster would be nice, with 5ns being very lovable ;-))
Paul
> -----Original Message-----
> From: owner-cores@opencores.org [mailto:owner-cores@opencores.org]On
> Behalf Of Mathias Johansson
> Sent: 09 January 2002 04:51
> To: cores@opencores.org
> Subject: RE: ??: [oc] blabla EPROM vsFLASH
>
>
> > Okay I'll use DRAMs for fluid data and just use FLASH for ucLinux binaries,
> > power on/off and critical log. All I need now is good place to buy them
> > or get some free samples from somewhere. Fed up with talking now want
> > to walk the walk ;-)
> > Paul
>
> <commersial mode>
> DRAM? Why? No need to involve any (relatively) complex memory controller,
> you can have the best of two worlds using the sweet baby - DS1270 - from
> Dallas Semiconductor. This one is great! 16M x8 SRAM (that's 2 mBytes you
> know..), access times of 70 ns (quite favourable comparisson to FLASH) NO
> LIMITED write access! Just write this baby anyting you want, she'll
> remember it. Trivial write procedure (after all, it's just ordinary SRAM!)
> and the battery backed version will retain it's data up to 5 years w/o VCC.
> Sure beats Flash in most applications requiring somewhat frequent
> updates/writes. I actually use it as flash substitute in all my designs.
> Works great as "BIOS"/boot-code storage, say lower 64kb or something, as
> well as program memory, normal data RAM, power-off log-area, framebuffer
> for yer Kool Display hardware or whatever. Does it get any better? I'm in
> love... :-)
>
> Oh yeah, it's standard thoughhole 36 pin DIL. Maybe some SMD version around
> aswell, don't know.
>
> Just thought I'd mention this, I am not in any way associated with Dallas
> semi. (what'd give you that idea?? :-)
>
> Oh and btw... www.maxim-ic.com Need I say more? Free samples of this
> beauty... You'll never know how you did get by w/o her!
> </commersial mode>
> Regards Mathias
>
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