User Activity

Is this part Non-Rohs? Date Code 0234.  I see the newer part TS514AID look to be Rohs. Where can we look up part's to see if they are Rohs or Non-Rohs?  
What is the MSL level on this part? I don't see it on the datasheet?
Does anyone here have a datasheet for part# SD1731-11? I see on website only datasheet SD1731 and SD1731-14. Does anyone know what the "dash #" stands for?
Doesn't anyone here know if StMicro partner with Echelon? The die says "STmicro" but part is Echelon?