8-Bit I/O Expander with Open-Drain Outputs
| Pin | Name | Type |
|---|---|---|
| 3 | SCL | input |
| 4 | SDA | bidirectional |
| 5 | ADDR | input |
| 6 | ~{RESET} | input |
| 7 | INT | output |
| 1 | VDD | power_in |
| 18 | VSS | power_in |
| 15 | GP7 | bidirectional |
| 14 | GP6 | bidirectional |
| 13 | GP5 | bidirectional |
| 12 | GP4 | bidirectional |
| 11 | GP3 | bidirectional |
| 10 | GP2 | bidirectional |
| 9 | GP1 | bidirectional |
| 8 | GP0 | bidirectional |
| 16 | NC | passive |
| 17 | NC | passive |
| 2 | NC | passive |
