Memory/cache on the 11/70

[Dave McGuire]

On Jan 9, 2009, at 3:47 AM, Roy J. Tellason wrote:
>>     You have many ways to go. Old Pentium cache is 128K X 4 in a  
>> very small
>> SMD package. But you can get 32X8 in DIP packages which will be  
>> free for
>> asking anywhere.
>
> 32kx8 sounds like a real handy size for some of the things that I'd  
> like to
> do,  with z80 and similar 8-bit parts.
>
> Any suggestions as to where I might find some welcomed.  I have  
> 2kx8 and 8kx8
> parts,  but nothing bigger.
>
> Maybe I should look on my old 486 boards?

   Why bother?  6264 and 62256 chips are extremely common and much  
more "standard".  They go for a few dollars a tube all day long on  
eBay.  And, should you ever decide to "go that way" with a design,  
they're also readily available in SMT packages.

   Standard chips good.  Weird chips from the PC world, bad.

            -Dave

-- 
Dave McGuire
Port Charlotte, FL