On Wed, 22 Aug 2012 09:57:52 +0100 "Gareth Magennis"
wrote in Message id:
:

Hi,

can't seem to even find a printable datasheet for this well obsolete device.

Its an 8080A controller/bus driver, just wondering if anyone knows where I
might find a replacement - perhaps someone knows of a common old piece of
equipment that might have one I can salvage.


This is in an AMS DMX 1580, a digital delay from the last century.

Ebay?
http://www.ebay.com/sch/i.html?_from...&_nkw=uPB8228C

Datasheet:
http://www.datasheetarchive.com/UPB8228C-datasheet.html

Intel also made the 8228. Very likely that Intel designed it, and NEC
copied.