On Thu, 6 Dec 2001, Chris Dean wrote:
>
> Hello Speedy2.
>
> In one word. No. I thought of the same idea as you, but after doing some
> research I discovered that the only chips that will upgrade a Newton have to
> have the following specs.
Why no?
>
> 16M EDO(1-Mword x 16-bit) 4k refresh ==> A single chip has 2M capacity so
> you need two chips.
> single 3.3V
> EDO page mode
> 4K refresh cycle : 64ms(128ms for L-version)
> Low power version
> T package type.
>
I was saying we used a 64Mbit EDO DRAM instead of the 16Mbit one.
64Mbit=8Mbytes/chip *2 = 16MBytes.
We could potentially use a 4M x 16 instead of the 1M x 16.
A potential part is the following:
http://download.micron.com/pdf/datasheets/dram/D29_C.pdf
Certainly one would need to re-wire the chips on the board, but it's
certainly possible (I've done as much on other devices).
Would anyone be willing to "donate" an MP2000 for research purposes?
Thanks,
Speedy2.
-- This is the Newtontalk mailinglist - http://www.newtontalk.net To unsubscribe or manage: visit the above link or mailto:newtontalk-request_at_newtontalk.net?Subject=unsubscribe
This archive was generated by hypermail 2.1.2 : Wed Jan 02 2002 - 12:01:15 EST