Datasheet / Info for Motorola SC5330 IC?

William Donzelli wdonzelli at
Wed Sep 30 15:08:03 CDT 2020

The Motorola SC prefix means a custom or semicustom part. Good luck!


On Wed, Sep 30, 2020 at 4:05 PM Josh Dersch via cctalk
<cctalk at> wrote:
> I'm in the middle of working out the pinout for the power supply connector
> on the MDP-1000.  I'm aided somewhat by a set of test points on the
> backplane, unfortunately the "+" and "-" symbols (in the solder mask labels
> next to the test points) are nearly indiscernible, so I'm trying to verify
> that I'm not mixing up + and - 15V.
> On the core memory boards are eight Motorola SC5330 IC's (datecodes from
> early 1969), which have pins connected to both the + and - 15V lines -- if
> I can find a datasheet I could pretty easily confirm which is which.
> Trouble is I can't find anything on this chip.  I've scanned through the
> databooks on Bitsavers, no luck.  Anyone have any ideas?
> Here's a picture in case that helps at all:
> - Josh

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