Altair parts substitutions

From: Eric Smith <eric_at_brouhaha.com>
Date: Wed May 24 20:01:25 2000

"Richard Erlacher" <richard_at_idcomm.com> wrote:
> I didn't realize that Intel made any 2508's.

I don't think they did. That was TI's part number for the 5V 1K*8 EPROM.

Intel's 5V 1K*8 part was the 2758. Other posts have claimed that an Intel
2758 is a half-bad 2716, but my fuzzy recollection from that era was that
the ones I looked at had substantially different die sizes. For half-bad
parts Intel usually added a suffix to the part number to denote which half
was bad, and I didn't see such a designation on any of the 2758s I used.

> My sense is that they called their 5-volt parts 8708's.

Nope, that required the same supplies as the 2708, since it was
really the same part.

> TI was the one famous for the numbering screwup made by assigning an
> industry-standard number to parts that didn't meed the industry standard.

Because there *wasn't* an industry standard on the 2K*8 EPROM at the time
when TI and Intel both announced their parts. I think Intel's move to
the single 5V supply caught TI completely by surprise.
Received on Wed May 24 2000 - 20:01:25 BST