| PIN | Bezeichnung |
| 1 | Ground (Masse) |
| 2 | +5V |
| 3 | +5V |
| 4 | IRQ |
| 5 | R/W |
| 6 | DOTCLOCK |
| 7 | I/O 1 |
| 8 | GAME |
| 9 | EXROM |
| 10 | I/O 2 |
| 11 | ROM L |
| 12 | BA |
| 13 | DMA |
| 14 | CD7 |
| 15 | CD6 |
| 16 | CD5 |
| 17 | CD4 |
| 18 | CD3 |
| 19 | CD2 |
| 20 | CD1 |
| 21 | CD0 |
| 22 | GND |
|
| PIN | Bezeichnung |
| A | GND |
| B | ROM H |
| C | RESET |
| D | NMI |
| E | Phi 2 |
| F | CA15 |
| H | CA14 |
| J | CA13 |
| K | CA12 |
| L | CA11 |
| M | CA10 |
| N | CA9 |
| P | CA8 |
| R | CA7 |
| S | CA6 |
| T | CA5 |
| U | CA4 |
| V | CA3 |
| W | CA2 |
| X | CA1 |
| Y | CA0 |
| Z | GND |
|