Memory chip substitute?
Dwight K. Elvey
dwight.elvey at amd.com
Mon Aug 15 12:54:11 CDT 2005
>From: "Allison" <ajp166 at bellatlantic.net>
>>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>
>> 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.
It seems like 4044 and 6044 are both 4Kx1 chips. These
were used on HeathKit H8 8K memory boards. I'd suspect that
they might work. The onlt source I've found is a local
place called Anchor Electronics. I don't recall if they
have a web page.
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