Are 7438s in DEC interfaces special?

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Fri Jun 27 18:59:51 2003

> I need to lay hands on at least one 7438 to stick into my new (to
> me) Emulex QD21 to implement the "22-Bit Addressing Kit"... there's
> a single socket by the fingers, U49, that accepts the 7438, and a
> switch to throw. I can pick up a 7438 for all of $0.28 at B.G. Micro,
> but the question is are they hand-picked in any way? If so, what would

I think DEC selected them (for leakage, drive, etc), but I don't think
Emulex did (or at least my Emulex SCSI card came with a 7438 to insert if
you wanted 22 bit addressing and it didn't have any special markings).

Unless you have a well-loaded bus, I think any 7438 will work.

-tony
Received on Fri Jun 27 2003 - 18:59:51 BST