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Need help identifying this vintage IC
DiddlyJackSquat:
Found this while I was sorting out my logic ICs and uh, I can't figure out what it is :-//
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Benta:
National Semiconductor. Probably with customized marking.
themadhippy:
maybe an op amp or 2
josh132:
Get one of those IC tester thingamabobs. It might tell you what is is.
DiddlyJackSquat:
--- Quote from: Benta on May 23, 2021, 08:25:15 pm ---National Semiconductor. Probably with customized marking.
--- End quote ---
That's what i thought until I tried to google the part number... :P
natsemi 643 doesn't come up with anything nor does LM3532 make any sense
but here's their old logo
Yup that's right
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