Original Game Boy cartridge connector is a 32-pin edge connector for DMG, Game Boy Pocket, and Game Boy Color cartridges with an 8-bit data bus and 16-bit address bus at 5V.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VCC | 5V supply | PWR |
| 2 | /PHI | Clock output | BUS |
| 3 | /WR | Write enable | I/O |
| 4 | /RD | Read enable | I/O |
| 5 | /CS | Chip select | I/O |
| 6 | A0 | Address bit 0 | I/O |
| 21 | A15 | Address bit 15 | I/O |
| 22 | D0 | Data bit 0 | I/O |
| 29 | D7 | Data bit 7 | I/O |
| 30 | /RST | Reset | I/O |
| 31 | VIN | External audio input | ADC |
| 32 | GND | Ground | GND |
Original Game Boy cartridge connector is a 32-pin edge connector for DMG, Game Boy Pocket, and Game Boy Color cartridges with an 8-bit data bus and 16-bit address bus at 5V.