I am looking to replace a 27C256 compatible maskRom (nintendo Nrom PRG and CHR if it matters) with a socketed 28C256 in order to make a development cart.
It looks like the pin for A14 is in the wrong place and will need to be wired to hole 27
/WE(pin 27) is active low on the 28C256
Can I just float pin 27(leave unconnected)? Or would I connect /WE to +5v?