8-Bit I/O Expander with Serial Interface
| Pin | Name | Type |
|---|---|---|
| 1 | SCK | input |
| 2 | SDA | bidirectional |
| 3 | A2 | input |
| 4 | A1 | input |
| 5 | A0 | input |
| 6 | ~{RESET} | input |
| 8 | INT | output |
| 18 | VDD | power_in |
| 9 | VSS | power_in |
| 17 | GP7 | bidirectional |
| 16 | GP6 | bidirectional |
| 15 | GP5 | bidirectional |
| 14 | GP4 | bidirectional |
| 13 | GP3 | bidirectional |
| 12 | GP2 | bidirectional |
| 11 | GP1 | bidirectional |
| 10 | GP0 | bidirectional |
| 7 | NC | passive |
