Re: MOS8520R4 - 1988 vs. 1991

From: Francesco Messineo <francesco.messineo_at_gmail.com>
Date: Wed, 29 Jan 2020 18:08:00 +0100
Message-ID: <CAESs-_wd3+Ain_dj5nYWf8X3ZNzYibheFN1dwYoU-ei7LwfO2g_at_mail.gmail.com>
On Wed, Jan 29, 2020 at 5:57 PM Mia Magnusson <mia_at_plea.se> wrote:

> We know for sure that parts like VIC, VIC-II, SID, CIA and the Amiga
> chipset never ended up in any other companies products.

VIC was not a great display adapter even by 1980's standards
VIC-II was much better, but it was already used in the best selling
computer of the era.
I think other companies would not see any space for competing against
that with the same video chip.
SID: see VIC-II reasoning.
I think it also applies to the Amiga chipsets, imho.

>
> At some point in time the MOS/CSG products must had stopped being
> competitive in the semiconductor market.

they were basically only producing very specialized chipsets for their
products as soon as the C64 started
being a good selling machine.

Btw, I have a PCB of some device (it has a midi interface, I can't
tell much more about it) that happened to use
MOS general purpose TTL clones (like the 7406 equivalent and others
that were found on some C64 boards too).
So in some cases, those chips were sold to other companies.

Frank
Received on 2020-05-30 00:33:05

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