My Projects

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

electronic:datasheet:start [2019/11/17 19:33]
tony
electronic:datasheet:start [2023/01/18 14:54] (current)
tony [Date Codes]
Line 13: Line 13:
  
 On the [[:​electronic:​datasheet:​sidebar|sidebar]] there is a list of component/​device manufacturers,​ initially at least devices will be listed alphabetically by part number. ​ If my collection gets large then other categorization schemes may be implemented. On the [[:​electronic:​datasheet:​sidebar|sidebar]] there is a list of component/​device manufacturers,​ initially at least devices will be listed alphabetically by part number. ​ If my collection gets large then other categorization schemes may be implemented.
 +
 +===== Date Codes =====
 +((More info at https://​maker.pro/​forums/​threads/​japanese-date-codes.122951/​))
 +
 +In the following “**n**” is a place holder for a digit, “**A**” for an alphabetic character, and “**X**” is either.
 +
 +“**nAn**” IC date codes\\
 +Many integrated circuits made in Asia used a three character code to state the year, month and week of manufacture.\\
 +Format //ymw//, so “6C4” means the 4th week of March 1986.
 +
 +^//​m//​^Month|
 +^A|January|
 +^B|February|
 +^C|March|
 +^D|April|
 +^E|May|
 +^F|June|
 +^G|July|
 +^H|August|
 +^J|September|
 +^K|October|
 +^L|November|
 +^M|December|
 +(NB "​I"​ not used for month)
 +
 +
 +“**nnnn**” IC date codes\\
 +Many integrated circuits have a four digit code to state the week and year of manufacture.\\
 +Format //yyww// or //wwyy//, so “8610” or 1086 for tenth week of 1986.
 +
 +
 +
 +“**nnXX**” IC date codes\\
 +Many integrated circuits made by Sharp in the 1980s used a four character code to state the year, month and week of manufacture.\\
 +Format //nymw//: Id digit, Last digit of year, Month, Week.  So 921C means third week of January, 1982
 +^//​m//​^Month|
 +^1|January|
 +^2|February|
 +^3|March|
 +^4|April|
 +^5|May|
 +^6|June|
 +^7|July|
 +^8|August|
 +^9|September|
 +^X|October|
 +^Y|November|
 +^Z|December|
 +
 +^//w//^Week of month|
 +^A|Week 1|
 +^B|Week 2|
 +^C|Week 3|
 +^D|Week 4|
 +^E|Week 5|
 +
  
 ====== References and Additional Resources ====== ====== References and Additional Resources ======
Line 25: Line 81:
   * [[https://​ganswijk.home.xs4all.nl/​chipdir/​index.html|Chipdir]] ((https://​web.archive.org/​web/​20100210040329/​http://​www.xtremetech.com.au/​chipdir/​|Australia))((http://​www.radiomaterial.com/​chipdir/​|x Czech))((https://​web.archive.org/​web/​20041204013022/​http://​www.moliusis.de/​chipdir/​|Germany))((http://​www.xs4all.nl/​~ganswijk/​chipdir/​|Netherlands 1))((http://​www.chipdir.nl/​|Netherlands 2))((http://​margo.student.utwente.nl/​stefan/​chipdir/​|Netherlands 3))((http://​www.batnet.pl/​chipdir/​|Poland))((https://​web.archive.org/​web/​20130731042335/​http://​www.micros.com.pl/​chipdir/​|Poland))((http://​www.chipinfo.ru/​chipdir/​|Russia))((https://​web.archive.org/​web/​20131219032005/​http://​www.fer.nu/​chipdir/​|Spain))((http://​www.acl.co.uk/​chipdir/​|United Kingdom 1))((http://​chipdir.pinout.co.uk/​|United Kingdom 2))((http://​www.embeddedlinks.com/​chipdir/​|California))   * [[https://​ganswijk.home.xs4all.nl/​chipdir/​index.html|Chipdir]] ((https://​web.archive.org/​web/​20100210040329/​http://​www.xtremetech.com.au/​chipdir/​|Australia))((http://​www.radiomaterial.com/​chipdir/​|x Czech))((https://​web.archive.org/​web/​20041204013022/​http://​www.moliusis.de/​chipdir/​|Germany))((http://​www.xs4all.nl/​~ganswijk/​chipdir/​|Netherlands 1))((http://​www.chipdir.nl/​|Netherlands 2))((http://​margo.student.utwente.nl/​stefan/​chipdir/​|Netherlands 3))((http://​www.batnet.pl/​chipdir/​|Poland))((https://​web.archive.org/​web/​20130731042335/​http://​www.micros.com.pl/​chipdir/​|Poland))((http://​www.chipinfo.ru/​chipdir/​|Russia))((https://​web.archive.org/​web/​20131219032005/​http://​www.fer.nu/​chipdir/​|Spain))((http://​www.acl.co.uk/​chipdir/​|United Kingdom 1))((http://​chipdir.pinout.co.uk/​|United Kingdom 2))((http://​www.embeddedlinks.com/​chipdir/​|California))
   * [[https://​web.archive.org/​web/​*/​http://​www.es.co.th/​Schemetic/​PDF/​*|A bunch of PDF datasheets]]   * [[https://​web.archive.org/​web/​*/​http://​www.es.co.th/​Schemetic/​PDF/​*|A bunch of PDF datasheets]]
 +  * [[https://​elektrotanya.com/​semilogos|Semiconductor manufacturer logos]]
  
 <​html><​small><​p>​If any referenced page no longer exists, try looking for its URL on <a href="​http://​archive.org">​http://​archive.org</​a>​.</​p></​small></​html>​ <​html><​small><​p>​If any referenced page no longer exists, try looking for its URL on <a href="​http://​archive.org">​http://​archive.org</​a>​.</​p></​small></​html>​