Spec, the OP is asking for a datasheet. Not where to buy them. Neither of the links you posted have links to the datasheet.
thank you dearHy abdallaheng
It seems, as you have obviously found, that the SK8085 data sheet is very illusive.
After a good look around the net all I could establish is that Unitrode first made the SK8085. Later Texas Instrument bought Unitrode and continued to market the device but then withdrew it.
These vendors popped up on the searches:
And this schematic seems to be associated with the SK8085
It has been variously mentioned that the SK8085 is a subset of the ON SCY99194 but I'm not sure about that. Anyway here is the ON SCY99194 data sheet: