| Electronics > Projects, Designs, and Technical Stuff |
| Chip dating (photo inside) |
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| 001:
Hi! TI chip marked as 0 4 0 Is it 40 week of 1980? |
| amyk:
Pictures please... |
| DaJMasta:
(photo inside) *no photo* ;D In any case, a picture would help us, but maybe this would help as well: TI appnote szza020c |
| floobydust:
I've never seen vertical text for marking date codes on a PDIP. TI databook RC4558 was a new die in 1990, I think the RC4558Y. The IC goes back to 1976. Anything on the underbelly i.e. Malaysia. |
| 001:
--- Quote from: floobydust on October 05, 2019, 07:33:51 pm ---I've never seen vertical text for marking date codes on a PDIP. TI databook RC4558 was a new die in 1990, I think the RC4558Y. The IC goes back to 1976. Anything on the underbelly i.e. Malaysia. --- End quote --- Yea Malaysia TI Vertical numbers like this |
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