22 May
2009
22 May
'09
5:06 a.m.
On 22 May 2009 at 0:23, Dave McGuire wrote:
Got a bunch of the Inmos chips, if you're interested.
I'm sure you know that you can get modern DRAM in x72, x36 and x18
configurations quite readily.
Heh, I remember needing a very fast SRAM for a bankswitching memory
controller back in the 70's. I used a Fairchild 64x9 bipolar SRAM,
grumbling that what I really needed was a x8. The bugger drank about
a watt. I think they were available in 256x9 also. At that time,
the speeds were considered to be very fast (60 nsec), but would be
laughable now.
--Chuck
On May 22, 2009, at 12:17 AM, bfranchuk at
jetnet.ab.ca wrote:
Grumbles at
the lack of 9 bit wide ram chips ... No matter how
you look at it any kind of 18 bit computer has power compared to a
16 bit or less cpu. PS. Now you know what kind of computer I am
designing, but this is off topic since only 1 off does not count as
a classic computer unless it tubes or flip/chips[1] used.
What sort of density are you looking for? I've seen some really
nice 16Kx1 SRAM chips made by Inmos. Or you could implement a DRAM
controller in your FPGA and do it that way, with 1-bit-wide DRAM
chips.