NES (Nintendo Entertainment System) cartridge connector is a 72-pin edge connector for NES game cartridges with an 8-bit data bus and 15-bit address bus plus additional control and expansion lines.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | GND | Ground | GND |
| 2 | SND | Audio output | ADC |
| 3 | /RESET | Reset active low | I/O |
| 11 | A0 | Address bit 0 | I/O |
| 47 | D0 | Data bit 0 | I/O |
| 54 | D7 | Data bit 7 | I/O |
| 72 | VCC | 5V supply | PWR |