Signetics SC2622 / 2622N NTSC IC

Dillweed

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Anybody have this IC? I assume many games didn't use it. However, Quasar sure does.
I tried looking it up online. Couldn't find anyone selling one. Attached is the pinout. It's a 14pin DIP.
 

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Kinds similar to the Namco 07xx, but with fewer outputs.
You could probably cobble a replacement together with a few GALs if the datasheet gives accurate timing diagrams.
 
Kinds similar to the Namco 07xx, but with fewer outputs.
You could probably cobble a replacement together with a few GALs if the datasheet gives accurate timing diagrams.

That's why I was asking about a datasheet. But I didn't find one yet.
Do you have one?
 
If you really want to design replacements just buy one from @mhcapps and make a couple measurements to get the divide ratios and timing for the various outputs. It wouldn't be too difficult.

Yeah I got all excited about that when mhcapps posted those, then remembered I have so many "cool project bro!" things sitting on the shelf (for eyars years now) that there's no point in adding more. It's good to be busy at work, but at home it really sucks.

EDIT: fixed a typo
 
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Kinds similar to the Namco 07xx, but with fewer outputs.
You could probably cobble a replacement together with a few GALs if the datasheet gives accurate timing diagrams.
Or just save the effort and buy the real part from me. Unless you just want to do it for fun and to learn👍
 
The divide ratios are trivial
The position and width of the sync and blank would need to be measured.
Yea, that would be the "...and timing for the various outputs." I mentioned in my post. You could always punt and use RS-170 timings since it's designed for NTSC.
 
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