MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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homer79

United Kingdom
2 Posts
Posted - 11/17/2013 :  07:42:55  Show Profile
Hi,

I have a MX27C4000 which i need to replace, but this chip is no
longer available. Does anyone know if i can switch it over for
a AT27C040.

They are both 4Mbit 512X8, the pinouts are exactly the same.

regards
Reply #1

ZLM

2945 Posts
Posted - 11/17/2013 :  13:31:35  Show Profile
They should be read compatible, but you need to check the datasheet to confirm the pin out.
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Reply #2

homer79

United Kingdom
2 Posts
Posted - 11/30/2013 :  05:26:27  Show Profile
Tried it, worked like a treat
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