Altair parts substitutions

From: allisonp_at_world.std.com <(allisonp_at_world.std.com)>
Date: Thu May 25 08:09:33 2000

On Wed, 24 May 2000, Richard Erlacher wrote:

> You're right about the PMOS=> NMOS=>HMOS=>CMOS shifts in technology, but
> I'd be surprised to learn that the 3000 series parts as well as the 82xx
> bipolar parts weren't manufactured by NS, MMI, or TI.
>
> Dick

Exactly. Intel had bipolar fab but limited capability. Actually you
forgot Signetics and likely others that were used as silicon foundaries.
This is something that has always been commonplace in the industry.

However no one ever supplied the 3000 two bit slice other than intel.

Allison



> ----- Original Message -----
> From: allisonp <allisonp_at_world.std.com>
> To: <classiccmp_at_classiccmp.org>
> Sent: Wednesday, May 24, 2000 8:41 PM
> Subject: Re: Altair parts substitutions
>
>
> >
> > >.. very close. Apparently there was a process difference.
> > >> Though intel did at times morph one part/process into another.
> > >
> > >According to the 1980 Component Data Catalog, the specifications for
> > >the 3205 (p. 2-22) and 8205 (p. 6-45) are identical. DC, AC, and all
> > >the graphs.
> >
> >
> > By 1980 intel was shifting to mos/Hmos/HmosII and by then those
> > parts were way down the the process scaling and 32xx were nearly
> > extinct. In 76, that was not the case. Keep in mind my comment that
> > intel did morph parts into one another.
> >
> > Allison
> >
> >
>
Received on Thu May 25 2000 - 08:09:33 BST