Bandai M60001-0115P pinout

(Bandai) Mitsubishi M60001-0115P: 28-pin 0.6" PDIP (iNES Mapper 188)

            .--\/--.
    blue -> |01  28| -- +5V
  yellow -> |02  27| -> internal PRG /CE
  orange -> |03  26| -> external PRG /CE
 PPU A11 -> |04  25| -> VRAM A10
 PPU A10 -> |05  24| -> LatchedD6
 ROM R/W -> |06  23| -> PRG A14
 /ROMSEL -> |07  22| -> PRG A15
 CPU A14 -> |08  21| -> PRG A16
 CPU A13 -> |09  20| -> PRG A17
 CPU A12 -> |10  19| ??
 CPU D0  <> |11  18| <- CPU D6
 CPU D1  <> |12  17| <- CPU D5
 CPU D2  <> |13  16| <- CPU D4
     GND -- |14  15| <- CPU D3
            '------'

The color names were silkscreened on the PCB. They are the wires from the microphone.

This mapper has the dubious distinction of failing to prevent bus conflicts but also being too complex to comfortably say "it's just a couple silicon dice in a single package", unlike the Sunsoft-1 and -2. The described functionality is equivalent to five 74xx ICs. (74377, ½ 74139, ½ 7420, ½ 74244, 7432)

The M60001 prefix was used by Mitsubishi for custom orders: the M60001-0103P was used in the Joyball for the Famicom: [1]

See also: naruko's writeup