The Advin U84 that I use will do all EPROMS, PALS, GALS, EPLD's, MACH, etc from 
the
late 1970's up through the mid 1990's... it craps out when the 5V devices fell 
out of
fashion, and 3.3V (and lower) became popular.  The DAC's they used couldn't 
supply enough
resolution on the supply pins.  Their newer machines will do the same up 
through current
devices, but I don't wish to shell out another $4K for the capability.

-Chuck Harris

bownes wrote:
If you are going to worry about things at that level, then it is not just the 
memory devices, you'll be worrying
about all the programmable parts such as PALs, GALs, and other eplds. Then you 
are really looking fort some exotic
programmers.

Ironically, I bought a standalone programmer many many moons ago to back up a 
set of 1702's that I was concerned
about. A few months ago, while cleaning out the lab, I found a paper listing of 
the contents of said UVEPROMs. Not
quite sure where the programmer went to. :)

On Oct 23, 2010, at 9:42 AM, Magnus Danielson<[email protected]>  
wrote:


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