27C020
EPROM
256Kbyte x 8 Bit
This device is an Electrically Programmable Read-Only Memory (EPROM). It
has a size of 2Mbit, organized as 262144
Words by 8 Bit (WORD). The
Memory cells can be selected by 18 address lines and then switched to the data
outputs D0-D7 with OUTPUT ENABLE (/E). Before that the EPROM must be activated
with CHIP ENABLE (/G).
Memory contents can be cleared by ultraviolet light, therefore
EPROMs have a transparent opening that is taped over with a
Label after programming. Erased EPROMs can be reprogrammed 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