21 Mar
2022
21 Mar
'22
9:17 p.m.
On Mon, Mar 21, 2022 at 8:25 PM Chuck Guzis via cctalk
<cctalk at classiccmp.org> wrote:
The PROMs are most likely house-labeled Intel commodity parts with
JEDEC-standard pinouts, so it should be fairly easy, using an EPROM
reader, to figure out if these are 8KB, 16KB, 32KB or 64KB devices.
Some device programmers can read the manufacturer and device ID codes
from a device, if they are implemented. That would be
another way to
check for a Intel standard part.
Intel 2764 - 89h / 02h
Intel 2764A - 89h / 08h
Intel 27C64 - 89h / 07h
Intel 27128 - 89h / 83h
Intel 27128A - 89h / 89h
Intel 27C128 - 89h / FCh
Intel 27256 - 89h / 04h
Intel 27C256 - 89h / 8Ch
Intel 27512 - 89h / 0Dh
Intel 27C512 - 89h / FDh