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Jun 27, 2021 at 21:07 vote accept David Given
Jun 26, 2021 at 20:25 comment added Makyen Most parts will have both a part number and a date code marking. While formats vary, the most common date-codes include the week within the year and the last two digits of the year, usually written as wwyy. The date code is most commonly below or after the part number. With this information in mind, the markings on that chip can separated into the "B45P03" most likely being the part number and the "EDJ3207" containing a date-code indicating that it was manufactured in the 32nd week of 2007. That this interpretation is correct can be verified in the datasheet which you have already obtained.
Jun 26, 2021 at 6:18 history edited jpa CC BY-SA 4.0
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Jun 26, 2021 at 0:00 history tweeted twitter.com/StackElectronix/status/1408575796101496838
Jun 25, 2021 at 18:26 history became hot network question
Jun 25, 2021 at 13:13 answer added Spehro 'speff' Pefhany timeline score: 11
Jun 25, 2021 at 10:26 answer added David Given timeline score: 16
Jun 25, 2021 at 10:21 history asked David Given CC BY-SA 4.0