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LM10. Decent op amp (works down to 1.1V supply) and a band gap reference. Thanks to Bob Widlar What's not to like.
I was thinking about classic chips. Obviously Dave's favorite LM555, 741 op amp, LM7805 regulator, MC34063 buck/boost.
Any others come to mind. I assume that something like an OP27 is what one would use as a general purpose op amp now.
Need a flashing led? then you need an LM3909
What do you mean "more actual"? How do you get much more classic than 40 year old ICs that are still made?What about the 6502? It's iconic, and has been in steady production in one form or another for almost half a century.
NE567? I seem to remember this one being pretty buzzworthy back in the 80s in hobby magazines.
What do you mean "more actual"? How do you get much more classic than 40 year old ICs that are still made?