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Bare 27C256 EPROM ICs

AT27C256R-70PU DIP-28 32Kbyte x8 256Kbit 70nS CMOS Non-Erasable EPROM

AT27C256R-70JU PLCC-32 32Kbyte x8 256Kbit 70nS CMOS Non-Erasable EPROM

NM27C256V250 PLCC-32 32Kbyte x8 256Kbit 250nS CMOS Non-Erasable EPROM


DIP Weight: 8g

PLCC Weight: 5g

3 in stock 4 in stock 87 in stock

DIP-28, or PLCC32, packaged 27C256 32K x8 CMOS EPROM IC with 70nS, or 250nS, access time, manufactured by National Semiconductor or Atmel (Microchip). The EPROM is a non-erasable, or One Time Programmable, type without a window to allow UV erasure.

EPROMs are programmed with the file you upload on the next page, maximum size is 32Kbytes (256Kbits). The file must be supplied in raw binary format, data in Intel Hex or similar formats should be converted before submission to ensure that the correct data is written to the IC.

For large quantities, bulk pricing may be available. Feel free to enquire at:

AT27C256R Datasheet

NM27C256 Datasheet

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