SCU=MOSTEK>SGS-THOMSON>STMICROELECTRONICS is very interesting. I've decapped a few Mostek chips- I'll go back and look at them and see if I notice any similarities to the SCUS chips. It seems like they all have Mostek on the die somewhere, though.
It's possible it's a false positive, SCU != SCUS. Still, I thought I'd mention it.
