5 Feb
1998
5 Feb
'98
4:01 p.m.
From: Bill Yakowenko <yakowenk(a)cs.unc.edu>
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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