Pin compatibility of 2716, 8316, 9218

From: Paul Williams <celigne_at_tinyworld.co.uk>
Date: Mon Sep 10 17:26:11 2001

I'm looking at dumping the ROMs from a VT100 board, but I'm having
trouble finding pinouts of the ROMs.

The VT100 FMPS says that locations E40, E45, E52 and E56 on the basic
board are 8316E 2Kx8 ROMs. However, the schematics don't show the
designations for all 24 pins. The online Chip Directory doesn't contain
the pinout for the 8316 either.

My PROM Programmer will handle 2716 EPROMs, which the Chip Dir. does
contain a pinout for, and looks compatible with the 8316. I'd be tempted
to try dumping one of them, were it not for the fact that E45 on my
board is actually labelled "AM9218CPC", the pinout for which is also
absent from the Chip Dir.

Could anyone please tell me definitively whether the 8316, 9218 and 2716
are pin-compatible?

Cheers,
Paul
Received on Mon Sep 10 2001 - 17:26:11 BST