[rescue] sun 3/60 update

Dave McGuire mcguire at neurotica.com
Wed May 28 15:37:17 EDT 2025


On 5/28/25 15:12, Dan Moisa via rescue wrote:
> The Zilog SCC can likely be swapped with an Atmel. It's*extremely* 
> underutilized as far as I can tell. Not so for the network, but there 
> it's part of QEMU right now, and might fit again in a MCU that already 
> has an Ethernet impl, or FPGA/etc.

   Z8530s are available via eBay and many vendors all day long.  They 
were made in huge numbers; I don't really see them becoming difficult to 
find in my lifetime.  Heck I even have a few tubes of them here.  In 
PLCC, but still.

   The same goes for 27512s.  I have scads of them, I assume many other 
people do, and they seem to be available just about everywhere.

   The Am7990s are a different story, sure, but is there really any 
point to worrying about the Z8530s and 27512s?

   Not at all criticizing, and I applaud future-proofing.  But we'll 
probably get another 20yrs out of those parts, maybe more.

           -Dave

-- 
Dave McGuire, AK4HZ
New Kensington, PA



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