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Author Topic: 27C4002 EPROMS  (Read 1578 times)

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Offline GOS

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27C4002 EPROMS
« on: March 10, 2017, 05:16:19 PM »
Looking for a local supplier of 27c4002 eproms (new) - all I can find are china dealers.  Need 100 - buy/trade

Offline rokgpsman

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Re: 27C4002 EPROMS
« Reply #1 on: March 10, 2017, 06:05:57 PM »
The 27c4002 has been marked as "obsolete" by major electronic component suppliers so you may have a hard time finding them new from traditional places like Mouser, DigiKey, Jameco, etc. Unless someone has a stash that they will sell you may need to deal with aftermarket sources like ebay & China sellers. Did you check with EpromMan to see if he has any? He deals with a lot of the older memory chips like this, doesn't put all of them on his website and likes to sell in bulk like you are wanting.

http://epromman.com/


I believe the 27c4096 memory ic is equivalent to the 27c4002 and it is still available. However it is a "one time program" part, not erasable like a normal eprom.

http://www.mouser.com/ProductDetail/Microchip-Technology-Atmel/AT27C4096-90PU/?qs=sGAEpiMZZMvKaIdSMCzQp7MEooDLcIygIGo9zuk7GMY%3d


 
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Re: 27C4002 EPROMS
« Reply #2 on: March 10, 2017, 06:46:40 PM »
the ones I got from china - they would work in my burner but they were hit or miss - had a posting about them on my GQ-4X - just checking to see if there were some locally.  thank you for the info. didn't check with the eprom man - he doesn't list them - will try him.

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Re: 27C4002 EPROMS
« Reply #3 on: March 11, 2017, 04:31:17 PM »
The 27c4002 has been marked as "obsolete" by major electronic component suppliers so you may have a hard time finding them new from traditional places like Mouser, DigiKey, Jameco, etc. Unless someone has a stash that they will sell you may need to deal with aftermarket sources like ebay & China sellers. Did you check with EpromMan to see if he has any? He deals with a lot of the older memory chips like this, doesn't put all of them on his website and likes to sell in bulk like you are wanting.

http://epromman.com/


I believe the 27c4096 memory ic is equivalent to the 27c4002 and it is still available. However it is a "one time program" part, not erasable like a normal eprom.

http://www.mouser.com/ProductDetail/Microchip-Technology-Atmel/AT27C4096-90PU/?qs=sGAEpiMZZMvKaIdSMCzQp7MEooDLcIygIGo9zuk7GMY%3d


The couple of 4096 EPROMS I have been able to scrounge up all had windows in them for erasing so the non OTP ones are out there..... somewhere.
Let them that don't want any, have memories of not getting any.

Offline rokgpsman

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Re: 27C4002 EPROMS
« Reply #4 on: March 11, 2017, 05:09:05 PM »
Good to hear, thanks!
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