Mapper 208 pinout

           +---v---+
CPU A14 -> | 1   28| -- VCC
CPU A13 -> | 2   27| <- M2
CPU A12 -> | 3   26| <- CPU /ROMSEL
CPU A11 -> | 4   25| <- CPU R/!W
 CPU A1 -> | 5   24| <- CPU D0
 CPU A0 -> | 6   23| <- CPU D1
PPU A10 -> | 7   22| <- CPU D2
PPU A11 -> | 8   21| -- GND
   OR A -> | 9   20| <- CPU D3
   OR B -> |10   19| <- CPU D4
PRG A16 <- |11   18| <- CPU D5
PRG A15 <- |12   17| <- CPU D6
   OR Y <- |13   16| <- CPU D7
    GND -- |14   15| -> CIR A10
           '-------'
            UNNAMED
        0.6" 40-pin PDIP
		

Source: [[1]]