I was looking at some classic logic IC:s like the 74-series and could not help to wonder when they where designed, since it feels like they have been around a very long time.
If we take a example, how old is the 74HC595 design?
The Fourth Edition, 1980, of TI's "The TTL Data Book for Design Engineers" (the TTL reference at the time!) doesn't list the 595.
According to Wikipedia, the HC logic family was only introduced in 1982. Whether the '595 was part of the original roll-out, I couldn't say, but the specific part you called out couldn't have been developed before that time.
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