Does anybody have a datasheet - or know an equivalent - for an Intersil ITS80008, please?
It is a DIP40 and almost certainly some form of digital volt/multimeter, complete with 4x 7 segment LED drivers. I have come across one in a nice, little panel meter from the late seventies, and wouldn't mind knowing how not to blow out the inputs. The meter is (probably) a type 713 from IMC, Tucson, AZ, US of A.