Atmel AT27C256R EPROM IC  
Written by AnubisTTP on 2011-01-04  


Devices included in this entry:

Atmel AT27C256R (256K leadless carrier; pictured in thumbnail)
Microchip 27C512 (512K leadless carrier)

Atmel's AT27C256R is a 256K EPROM in a tiny surface mount leadless package. Though the majority of modern 27C256 devices are one time programmable IC's in anonymous plastic enclosures, this earlier gold and ceramic example includes a glass window for UV erasure. Later UV erasure versions of this part use an all-ceramic package, but retain the circular UV window.


Atmel AT27C256R EPROM

This chip was manufactured in a number of different versions. Shown are metal and ceramic lid versions manufactured by Atmel, and a 512K version made by Microchip

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