30 Sep
2007
30 Sep
'07
9:05 a.m.
Is there any kind of common failure mode for EPROMs? I've just had a couple
which are refusing to erase - I'm getting repeating patterns of bits which
refuse to clear (i.e. go high) under the eraser.
Normally they seem to erase in ten minutes, twenty at the most - these pair
have had 30 so far. Just wondering whether to keep baking 'em or just toss
them because they're junk...
(I've managed to find what I did with my nice eraser - but it'll still only
erase a couple of chips at once)
cheers
Jules