<ks@ub.uni-mainz.de> wrote:
> > > Then there's something labeled CORONA V1.3 A9D0
> >
> > I guess this looks much more like a flash (Name and version number?)
>
> Hm, the above's written on the white label covering the chip... where's
the
> pocket-knife?... so, no label anymore:

[sound of sirens wailing, lites flashing, much confusion and chaos...  :>  ]

> AM29F040B
> -120JC V
> 9942AVA L
> c1993 AMD
>
> So this is "AMD 4 Megabit (524,288 x 8-Bit) CMOS 5.0 Volt-only, Sector
> Erase Flash Memory"

Yes.  The "120" is the speed rating (120ns), the "C" the temperature
grade (Commercial).  And, the "J" the package type (PLCC).   <frown>
Unlikely that you'll have a "clip" to probe the pins of that part (and it
is NOT socketed, right?)