Irem H3001 pinout
Irem IF-H3001: 48-pin 0.6" DIP (canonically mapper 65)
.--\/--.
n/c -- |01 48| -> +5V
n/c -- |02 47| -> CHR A17
PRG A18 <- |03 46| -> CHR-A16
PRG A17 <- |04 45| -> CHR-A15
PRG-A16 <- |05 44| -> CHR-A14
PRG-A15 <- |06 43| -> CHR-A13
PRG-A14 <- |07 42| -> CHR-A12
PRG-A13 <- |08 41| -> CHR-A11
GND -- |09 40| -> CHR-A10
M2 -> |10 39| -- GND
CPU-A14 -> |11 38| -> PRG RAM /CE
CPU-A13 -> |12 37| -> /IRQ
CPU-A12 -> |13 36| -> CIR-A10
CPU-R/W -> |14 35| -> CHR-/CE
CPU-/ROMSEL -> |15 34| -> PRG-/CE
CPU-A2 -> |16 33| -> delayed M2
CPU-A1 -> |17 32| <- PPU-A12
CPU-A0 -> |18 31| <- PPU-A11
PPU-A13 -> |19 30| <- PPU-A10
PPU-/RD -> |20 29| <- CPU-D7
CPU-D2 -> |21 28| <- CPU-D6
CPU-D1 -> |22 27| <- CPU-D5
CPU-D0 -> |23 26| <- CPU-D4
GND -- |24 25| <- CPU-D3
'------'
References: [1]