CLASSICCMP digest 316 - test-drb@ccmp.vtda.org

5 Feb 1998

From: Bill Yakowenko &lt;yakowenk(a)cs.unc.edu&gt;
Subject: EPROM programming voltages

...
 Can anyone point me to an on-line reference showing the
necessary
voltages for programming various EPROMs?  I'm especially interested
in the oldies-but-goodies: 2708, 2716, 2732, and 2764's.  In
particular, it seems some of them want 25v while others want only
21v, and I suspect that even the same chip number from different
manufacturers may want different voltages. 
2708  (looks like 12 volts according to a spec sheet in one of my
books.)
2716  25 volts
2732  25 volts
2732A 21 volts
2732B 12.5 volts
2764  21 volts
27C64  21 volts
2764A  12.5 volts

  Source: EPROM Programmers Handbook for the C64 and C128 by CSM
Software.
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