6 Mar
2009
6 Mar
'09
6:57 a.m.
Alexandre Souza wrote:
Alexandre,
I haven't ruled out SRAM. As a matter of fact, it was my first choice.
It just seems like SRAM (and memory in general) is somewhat hard to
buy new in the right form factor and in low quantities.
I'd prefer something that is wide, 32-bits, or I could use two 16's.
And I need 8mb. And it needs to be fast. The memory would need to be
faster than 60ns. I'll be losing time through the fpga, so faster
memory is definitely a plus.
I've looked at digikey, mouser, newark, and I can't seem to find memory
that fits the bill.
What part number should I buy and where can I buy it in low quantities?
I've
seriously contemplated making my own matching memory expansion
module for my VXL/30 A500 cpu accelerator. Fairly complicated because
I have to create a DRAM controller. Thinking FGPA w/ a pre-made
memory controller core.
Something I could never understand: Why not using SRAM? We have tens of megabytes of SRAM today for cheap -
useless pentium
cache memory. And even SRAM chips, I have a 2MByte chip that costs
almost nothing. Why all the hassle of using slow and refresh-dependent
DRAM if SRAM is so easy to use?!
Thanks
Keith