8 Sep
2015
8 Sep
'15
12:14 p.m.
From: dwight <dkelvey at hotmail.com>
If I were doing it.
First you need to find out if it needs OC output.
There are many flash parts in surface mount that can have the higher
speeds.
Add some 74LVC245 to give bus drive needed, also
surface mount.
All on a little PC board. There would be a lot of wasted space in the flash
but what
the heck.
Put an edge connector on the board to deal with
programming.
All will fit in a smaller space than the original part.
Dwight
That would be great engineering fun! But at less than $4 for the blanks,
using the old PROMs and the vintage programmer seems pretty straightforward,
vintage correct, and low risk solution. Miraculously, my best offer got
accepted on ebay, so semi-affordable vintage clunky Data I/O 29B Programmer
and plenty of blanks are being shipped to me :-). I count collecting vintage
tools for servicing your vintage machine as part of the fun too...
Marc