29 Jan
2009
29 Jan
'09
10:21 a.m.
On Jan 29, 2009, at 10:42 AM, Mr Ian Primus wrote:
It would be neat, but kinda pointless. Leaving them in the eraser
for too long will definitely fry them, but it's not a matter of "five
minutes too long and it's toast".
I leave chips in the eraser for 20 minutes, and it's good for
everything I use, which is usually higher-capacity EPROMs, but
sometimes EPROM-based MCUs and UV PALs.
-Dave
--
Dave McGuire
Port Charlotte, FL
Presumably
more expensive erasers do things in-place - i.e.
periodically do a blank-check during the erase cycle?
Hmm, I've never even heard of such a device. Even the professional
EPROM erasers are little more than what I've built, a box with a UV
light and a timer. I've never heard of an eraser in which the chip
was actually connected to anything while being erased.
If a machine like this exists, however, it would be quite cool! But
probably very expensive, and a pain in the neck to use, as you'd
have to tell it what kind of chip you were erasing, and it would
need ZIF sockets and all kinds of electronics to read the chips.