Re: GALs and old PCBs


"matt" <mattgyma@xxxxxxxxxxx> wrote in message
news:43fb14d2.336396171@xxxxxxxxxxxxxxxxxxxxx
I've having some difficulties using a GAL on a 25 year old PCB - I
have the correct JEDEC file and my programmer will handle the GAL okay
(a GAL16V8D-25QPN) but the board won't work with the newly programmed
GAL.

Why is this likely to be?

Something to do with the type of GAL or perhaps even the speed?
(although I would have though that a -25 would be fine for a 25 year
old PCB).


Thanks


-25 is for speed, not for age ;o)

There is no reason to assume that your GAL would be of the right speed for a
25 year old PCB. Your GAL may be too fast or too slow. Don't you have the
original GAL?

--DF


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