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M4ROM 27256 - Writable multi option rom module for EPSON PX-4, PX-8, TANDY 600, any Molex 78805 socket with standard pinout
Provides 4 virtual 32k EPROM from a single 128k flash chip, in a Molex 78802 form factor to fit in a Molex 78805 socket.
The pinout at the castellated edge contacts is standard 32Kx8 parallel mask rom, or the same as 27C256 without the VPP pin.
Compatible with TANDY Model 600, Epson PX-4, Epson PX-8, Kyotronic KC-85, and most other things that have a Molex 78805 socket such as Allen-Bradley PLCs, Intermec and Telexon hand terminals, etc.
This is NOT for TRS-80 Model 100, 102, or 200! For those, see the M4ROM_TANDY
The chip is written and re-writable using this programming adapter common to both M4ROM_27256 and M4ROM_TANDY.
How to program: http://github.com/bkw777/M4ROM
M4ROM 27256 - Writable multi option rom module for EPSON PX-4, PX-8, TANDY 600, any Molex 78805 socket with standard pinout
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
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