5 Dec
2008
5 Dec
'08
1:53 p.m.
Tony, it MAY be possible, but I'm hard pressed
to NOT believe in a PS/2
It's certainly possible. After all you can build a processor using only
TTL chip, that was done many, many, times. Rememebr that the 74xxx TTL
family does include some small RAMs and fusible link PROMs :-) So you
could build a processor with data storage (RAM) and program memory
(PROM). And surely you agree the interface is possible using a processor.
to parallel converter using only TTL chips...it CAN be
done, but would use
TONS of TTLs :(
I've not tried to do it, but I'd guess it could be done in under 100
pacakages,, no problem. The interface is not that complicated after all.
-tony