Date   : Wed, 07 Feb 2007 04:50:49 -0000
From   : profpep@... (Mike)
Subject: Name that ULA

> .... and I've come across five of an unusual looking ULA chip.
>
> It is a very flat, 4-sided affair, with the markings etched out of a
> gold square. The casing is ceramic, with not actual pins to speak of.
> Rather the connections spread out on the underside from the central
> "core" to form pads to which spring contacts in the matching socket
> contact with.
>
> The chip is marked "FERRANTI ACORN ULA 12CO21M-33 8422".

I think it may be the ULA from an Electron. The chip was held in a clip on
the mainboard on a couple I've had. Some models of 286 used a similar
package.

HTH

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