Posted by defrost 7 days ago
Likely 1985.
https://www.crystalfontz.com/blog/look-back-tech-history-hd4...
It's also referenced in this catalog from 1982: https://bitsavers.org/components/hitachi/_dataBooks/1982_Hit...
Likely the first year of manufacture was 1981/82.
I have a Displate of a 555 in my little maker corner someone gifted me once: https://eikehein.com/assets/images/makercorner.jpg
Funny how, guided by pure mechanical necessity, pretty stuff can arise.
I've always thought that clockwork, chips and other machines were pretty.
And fractals. ( https://fleen.org/i40.png ) And plants and animals too. And weathered rock.
Which leads me to consider what isn't pretty. Naivety?