Need help identifying the following IC/CHIP

From: Claude <claudew_at_funcow.com>
Date: Mon Oct 2 20:59:41 2000

Well...

Looks like an EPROM. I imagine there was a glass window on top of the
chip...More or less the equivalent of floppy disk on a chip. Copied with
an EPROM programmer. Good luck in finding someone that can copy an
identical one for you...

Claude

> Ram Meenakshisundaram wrote:
>
> Hi,
>
> As my transputer collection increases, I just received a broken BBK-S4
> (Sparc-based SBUS transputer link adapter). As far as I can tell, the
> only broken piece is the firmware IC. The IC actually was broken in
> half exposing the actual IC. I think someone was trying to extract it
> incorrectly and it opened up. The delicate wires are snapped as
> well. I hope that the firmware is downloaded to the chip each time it
> is fired up, but I am not sure. The chip is labelled as:
>
> TOSHIBA
> TC57H256D-70
> JAPAN 8906YAA
> VPP 12.5V
>
> Does anyone know what type of IC this is and where I can obtain one?
> I would love to install this on my IPX and connect my T805-30MHz
> Xplorer to it. Thanks
>
>
> Ram
Received on Mon Oct 02 2000 - 20:59:41 BST