Memory chip substitute?

[Allison]

>
>Subject: Memory chip substitute?
>   From: "Richard A. Cini" <rcini at optonline.net>
>   Date: Mon, 15 Aug 2005 11:12:20 -0400
>     To: CCTalk <cctalk at classiccmp.org>
>
>All:
>
>	I'm repairing a few S100 memory boards and I'm having trouble
>crossing a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D.
>I have D5101LC1's "in stock". Are these equivalent?

No, not even close.

UPD410 is a fairly fast semistatic 4kx1.  5101 is cmos 256x4.

What memory board has a upd410 on it?  Very unusual.


Allison