SDK85 8755 EPROM Adapter
A youtube will follow to explain
This is pin compatible with an 8755 chip which is ROM and I/O. This board takes the place and uses standard EPROM devices that are easy to program. Of course the I/O capability of the 8755 is lost. Use a 27C512 or 27C256 type of part. the 74HCT373 de-multiplexes the lower 8 bits of the address bus.
SDK85 8755 EPROM Adapter
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