Tengen RAMBO-1 pinout

Tengen 337006 or RAMBO-1: 40-pin 0.6" PDIP (Canonically mapper 64)

                .--\/--.
      (n) M2 -> |01  40| -- +5V
 (r) PRG A16 <- |02  39| -> PRG A17 (r)
 (r) PRG A15 <- |03  38| <- CPU A13 (n)
 (r) PRG A13 <- |04  37| -> PRG A14 (r)
 (r) PRG /CE <- |05  36| <- CPU A14 (n)
 (rn) CPU D6 -> |06  35| <- CPU D7 (rn)
 (rn) CPU A0 -> |07  34| <- CPU D5 (rn)
 (rn) CPU D4 -> |08  33| <- CPU D0 (rn)
 (rn) CPU D2 -> |09  32| <- CPU D1 (rn)
     (n) R/W -> |10  31| <- CPU D3 (rn)
 (n) /ROMSEL -> |11  30| -> /IRQ (n)
 (r) CHR A10 <- |12  29| -> CHR A17 (r)
 (n) PPU A10 -> |13  28| -> CHR A11 (r)
 (n) PPU A12 -> |14  27| <- PPU A11 (n)
 (n) lockout ?? |15  26| -> CHR A13 (r)
 (n) lockout ?? |16  25| -> CHR A12 (r)
 (n) lockout ?? |17  24| -> CHR A14 (r)
 (n) lockout ?? |18  23| -> CHR A15 (r)
         GND ?? |19  22| -> CIRAM A10 (n)
         GND -- |20  21| -> CHR A16 (r)
                '------'

Variant pinout for iNES Mapper 158:

 (n) /ROMSEL -> |11  30| -> /IRQ (n)
 (r) CHR A10 <- |12  29| -> CIRAM A10 (n)
 (n) PPU A10 -> |13  28| -> CHR A11 (r)
 (n) PPU A12 -> |14  27| <- PPU A11 (n)
 (n) lockout ?? |15  26| -> CHR A13 (r)
 (n) lockout ?? |16  25| -> CHR A12 (r)
 (n) lockout ?? |17  24| -> CHR A14 (r)
 (n) lockout ?? |18  23| -> CHR A15 (r)
         GND ?? |19  22| -> n/a
         GND -- |20  21| -> CHR A16 (r)
                '------'

Source: Kevtris [1] [2]