TP> Quite possible...but all 27 series I've dealt with were UV erasable
TP> but this chip doesn't have a window. I'm lost now.

OTP EPROM (One-Time-Programming) for sure. It's a normal EPROM but it is in
a plastic case with no window so can't be erased. Very commonly used in
modern equipment, for some weird reason, perhaps they're cheaper.

-- Lewin A.R.W. Edwards [Team OS/2]  Tel 0419320415 * 0412809805 * 0414927056
@EOT:

--- MsgedSQ/2 3.35