please see embedded comments below.
Dick
----- Original Message -----
From: ajp166 <ajp166_at_bellatlantic.net>
To: <classiccmp_at_classiccmp.org>
Sent: Saturday, October 28, 2000 3:28 PM
Subject: Re: INS8154 used in Cytospin
> From: Richard Erlacher <richard_at_idcomm.com>
>
>
> >Well, I checked my 1980 National Semi MCS-48 data book and found not
> >only that there was no 8154, but that the 8155 and 8156 were not listed
> >(yet) either. They did make them, however, because I have them
(INS8155,56)
> >among my parts.
>
>
> The NS8156/55 were introduced a year or so later.
>
> >would appear together with products coming from device families intended
> >to replace the MCS-48. It must have lived within a fairly narrow window.
>
> National did the 804x for a while.
>
Yes. That was apparent from the fact they printed this MCS48 catalog.
>
> >NEC and a few others made the 8155 and '56, so they might have made a
> >version of the 8154 as well.
>
> They did not. the 8154 was an oddball part.
>
National made an extension on the 8048, i.e. the 8050, and the 8035 in the
form of an 8040. It had 256 bytes of on-board RAM, but otherwise pretty
well compatible with the Intel parts. They pushed it pretty hard for a year
or two.
>
> Allison
>
>
Received on Sat Oct 28 2000 - 20:02:49 BST