16-bit I/O I2C I/O Expander
| Pin | Name | Type |
|---|---|---|
| 14 | SCL | input |
| 15 | SDA | bidirectional |
| 9 | CLK | input |
| 10 | TP | passive |
| 18 | A2 | input |
| 17 | A1 | input |
| 16 | A0 | input |
| 6 | ~{INT} | output |
| 20 | VDD | power_in |
| 1 | VSS | power_in |
| 8 | VSS | power_in |
| 19 | VSS | power_in |
| 13 | GP1.7 | bidirectional |
| 12 | GP1.6 | bidirectional |
| 11 | GP1.5 | bidirectional |
| 7 | GP1.4 | bidirectional |
| 5 | GP1.3 | bidirectional |
| 4 | GP1.2 | bidirectional |
| 3 | GP1.1 | bidirectional |
| 2 | GP1.0 | bidirectional |
| 28 | GP0.7 | bidirectional |
| 27 | GP0.6 | bidirectional |
| 26 | GP0.5 | bidirectional |
| 25 | GP0.4 | bidirectional |
| 24 | GP0.3 | bidirectional |
| 23 | GP0.2 | bidirectional |
| 22 | GP0.1 | bidirectional |
| 21 | GP0.0 | bidirectional |
