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Author Topic: looking for a drop in eeprom replacement for AM27C040  (Read 4754 times)

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Offline RogueBotixTopic starter

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looking for a drop in eeprom replacement for AM27C040
« on: December 09, 2017, 05:46:48 pm »
I am having a hard time finding a replacement to replace an AM27C040 with an eeprom. Have some old boards that I need to update the firmware, I don't have an erasing lamp, so I figured if I just find a eeprom replacement that would be easier. I am not very knowledgeable in this field. Thanks for your help.
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Offline frozenfrogz

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Re: looking for a drop in eeprom replacement for AM27C040
« Reply #1 on: December 09, 2017, 05:56:57 pm »
You could try W27E040-12.
Also, EPROM eraser lamps can be had for a couple of bucks from ebay or local small ads.
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Offline RogueBotixTopic starter

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Re: looking for a drop in eeprom replacement for AM27C040
« Reply #2 on: December 09, 2017, 07:07:47 pm »
I still would like to find one electronically erased since I might have to do it multiple times.
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Offline frozenfrogz

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Re: looking for a drop in eeprom replacement for AM27C040
« Reply #3 on: December 09, 2017, 07:32:11 pm »
Please take a second look at the part I proposed. It is an EEPROM and not a UV-EPROM. It should be pin compatible and up to specs if I am not mistaken.
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Offline RogueBotixTopic starter

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Re: looking for a drop in eeprom replacement for AM27C040
« Reply #4 on: December 09, 2017, 08:06:06 pm »
Oh my bad, many thanks!
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Offline frozenfrogz

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Re: looking for a drop in eeprom replacement for AM27C040
« Reply #5 on: December 09, 2017, 08:11:40 pm »
You are welcome. Good luck with your project :)
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Online westfw

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Re: looking for a drop in eeprom replacement for AM27C040
« Reply #6 on: December 09, 2017, 09:38:53 pm »
A generic replacement for 27c040, in flash technology, would be 29f040

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Offline technix

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Re: looking for a drop in eeprom replacement for AM27C040
« Reply #7 on: December 18, 2017, 02:55:51 pm »
Quote from: westfw on December 09, 2017, 09:38:53 pm
A generic replacement for 27c040, in flash technology, would be 29f040
The problem would be pin compatibility - are 29F040 drop-in replacement for 27C040?

My personal favorite is actually one of those SD-based flash cartridges used in certain game consoles. However still, pin compatibility.
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