It's a 7-bit mux and refresh counter, and, if you ask me, it's a waste of
silicon. I used lots of 'em over the years and it isn't really that valuable.
If you have an application (one or two Intel Multibus-1 DRAM boards used 'em).
The 3242 is just a 7-bit mux and a 7-bit counter, with controls. It's useful
only if you specifically need it. I prefer to use normal muxes when I'm
reworking old troubled DRAM circuits.
If you really want the details, perhaps I can scan 'em for you. The 3242,
BTW, is not a MOT original, being an Intel/MMI design.
Dick
----- Original Message -----
From: "Ethan Dicks" <erd_6502_at_yahoo.com>
To: <cctalk_at_classiccmp.org>
Sent: Saturday, June 08, 2002 7:20 PM
Subject: Anyone have a data sheet on the MC3242?
>
> I'm stripping interesting parts off of these stat mux boards
> that I recently got around the corner - lots of socketed 6502s
> and 65c02s, 2532s and the like. Many of the boards have a 24-pin
> DIP MC3242 which I can find little about - Google only gives me
> one meaningful hit that it's a "Motorola Mux and Refresh". I'm
> trying to determine if it's worth desoldering any. I'm currently
> using a hot-air desolderer, so it's not a _lot_ of effort, but,
> for example, I'm not bothering to pull the popcorn TTL parts,
> just memory and "interesting" parts.
>
> So... anyone have any information on the MC3242 and why I might want
> to save a couple dozen of them?
>
> -ethan
>
>
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Received on Sat Jun 08 2002 - 22:31:42 BST