27256/27C256
EPROM
32Kbyte x 8 Bit
This device is an Electrically Programmable Read-Only Memory
(EPROM). It has a size of 256 Kbit, organized as 32768 Words by 8 Bit. The
Memory cells can be selected by 15 address lines and then switched to the data
outputs D0-D7 with OUTPUT ENABLE (/OE). Before that the EPROM must be activated
with CHIP SELECT (/CS).
Memory contents can be erased by ultraviolet light. Therefore EPROMs have a
transparent opening, which is taped over with a Label after programming. Erased
EPROMs can be programmed again with an EPROM programmer.
Our EPROMs are used, but tested and erased. They are
from different manufacturers, but depending upon availability we consider
your special needs (type, access time, manufacturer… ). We also offer a
programming Service for EPROMs