Matsushita MN8600: what function?

[doccybrown]

Hello,
does anyone know what
function the MN8600 has?
Probably not a CPU but
maybe any controller?
BTW this unit is for trade or sale
Thanks,
Doccy

[debs3759]

According to http://www.tvservice.org/components/PANCROS1.pdf#search=%22MN8600%22 MN6800 is a MOS LSI. Some returns on a google search indicate that it is an Mpeg-2 audio/video codec.

[JAC]

Sorry debs, that doesnt look like a codec, and it looks a bit old for that technology MPEG only evolved around late 80's/ early 90's.

[JAC]

January 1988

http://erg.abdn.ac.uk/research/future-net/digital-video/mpeg2.html

[debs3759]

I thought it looked too old for MPEG-2, but as it came up on a search for MN8600 I thought it best to add the info. The main reason I added it is so that anyone finding a modern MN8600 which is in fact a codec (assuming the far-east sites that refer to it aren't mistaken) would not be mistaken by finding it here as just the older LSI chip...

Mind you, I must also admit that as the chip itself doesn't currently interest me I didn't look close enough to have noticed it could only be the older one

[doccybrown]

Hello guys,
thank you for your help! I was already
searching for any information in the web
some time ago but couldn`t find anything.
My hope was somebody knows it coincidentally.
Seems like it is not a very popular part....
If I should open the lid to take a photo
of the die? This way would help to classify it
but also it would be good for gold-scrap
after this violence...
/Doccy

[kosmokrator]

Im sorry to bring back this Old topic but....
I heve recentrly Buy from a member here this chip....
Unfortunally the chip come to me with a deadly crack so its useless for my collection...
Im find almost nothing about this but worth to look inside...
i think is some kind of cpu or controller.(?)

i like to hear your thoughts or Any info about this part...
Thnx a lot...

[CPUShack]

A lot of registers/ROM in there it appears.

anyone have a die shot of Zilog Z8?

[doccybrown]

Matsushita MN680xx - series are hardware-codecs for image-processing
and used in fax machines.
For MN680x I found the MN6806 which translates modified huffman code,
this technology is also used in fax machines.
Maybe the MN8600 is anything like that too or the main controller of
a fax machine? Still a big mystery...

Below a die-shot of the MN8600 made by William Blair,
haven't heard from him for a while, hope he is ok.

[aberco]

Back on an old post, but it seems that the MN680x are a series of 8bit micro controllers.
The data sheet for the MN6802 is pretty clear and refers to the MN6800 as well

http://www.datasheetarchive.co.uk/dlmain/363d6057f85267b9bc0f4b76209edba1269592/M/MN6802

[isa-d]

[Birdman.]

Now that this old topic popped up I'll add that I've taken die shot of Matsushita MN8600SA1:
https://commons.wikimedia.org/wiki/File:Matsushita_MN8600SA1_die.jpg

William Blair's MN8600SA2 die http://www.cpu-world.com/info/dies/L_Matsushita-MN8600SA2.jpg seems to be otherwise similar but has top third of ROM empty. Then I found reference to paper “DSP for modem MN8600” in http://www.egretcom.com/plc/EG-001_presentation_English.pdf but couldn't find the paper that might have proper information about this chip.

Thus, I hope someone finally finds some information so that I can move this die out of unknown section of my die shot page. At least this die looks quite interesting and might be some kind of DSP indeed.