6800 ES's there seem to be to many

FDIV · Joined: 12 Mar 2006 Posts: 740 Location: Ohio, USA

I know that early Motorola chips like the 6800 here: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=130091033286&rd=1&rd=1
are supposed to be engineering samples but dosen't it seem like there are a bit to many? There are 4 on cpuphotolibrary alone http://www.cpuphotolibrary.com/cat654.htm?page=2
Are these really ES? How do we know? I'm just saying, how many intel 8088 ES chips have you found lying around.

CPUShack · Posted: Thu Mar 22, 2007 12:28 am Post subject:

These are not ES
they are just not fully validated.
They may contain as yet undocumented errata etc.

More like Qualification samples

FDIV · Joined: 12 Mar 2006 Posts: 740 Location: Ohio, USA

That makes a bit more sense.

Thanks,
Les

chipcollector · Joined: 28 Sep 2004 Posts: 1681 Location: New England

http://www.cpu-world.com/CPUs/6800/Motorola-XC6800B.html

According to this site's database, they are ES.

gshv · Joined: 01 Feb 2003 Posts: 7898 Location: Fairfax, VA USA

I think XC on old Motorola microprocessors means that they are engineering samples. Starting from 68020 or 68030 family the engineering samples were marked with "PC" prefix. It's possible that earlier processors had "XC" prefix for both ES and QS chips.

Gennadiy

CPUShack · Posted: Thu Mar 22, 2007 6:05 pm Post subject:

as I have seen several late production models with X prefixes, leading to the qualification designation

gshv · Joined: 01 Feb 2003 Posts: 7898 Location: Fairfax, VA USA

CPUShack · Posted: Fri Mar 23, 2007 12:25 pm Post subject:

pretty sure I have seen XC6800A with a 76 code

gshv · Joined: 01 Feb 2003 Posts: 7898 Location: Fairfax, VA USA

XC6800A could be a faster version than XC6800B.

Gennadiy

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