24-Bit I2C-Bus I/O Expander
| Pin | Name | Type |
|---|---|---|
| 31 | AD0 | input |
| 32 | AD1 | input |
| 1 | AD2 | input |
| 29 | SDA | input |
| 28 | SCL | input |
| 2 | ~{RST} | input |
| 27 | ~{INT} | output |
| 30 | VCC | power_in |
| 3 | IO0_0 | bidirectional |
| 4 | IO0_1 | bidirectional |
| 5 | IO0_2 | bidirectional |
| 6 | IO0_3 | bidirectional |
| 7 | IO0_4 | bidirectional |
| 8 | IO0_5 | bidirectional |
| 9 | IO0_6 | bidirectional |
| 10 | IO0_7 | bidirectional |
| 11 | IO1_0 | bidirectional |
| 12 | IO1_1 | bidirectional |
| 13 | IO1_2 | bidirectional |
| 14 | IO1_3 | bidirectional |
| 15 | IO1_4 | bidirectional |
| 16 | IO1_5 | bidirectional |
| 17 | IO1_6 | bidirectional |
| 18 | IO1_7 | bidirectional |
| 19 | IO2_0 | bidirectional |
| 20 | IO2_1 | bidirectional |
| 21 | IO2_2 | bidirectional |
| 22 | IO2_3 | bidirectional |
| 23 | IO2_4 | bidirectional |
| 24 | IO2_5 | bidirectional |
| 25 | IO2_6 | bidirectional |
| 26 | IO2_7 | bidirectional |
| 33 | EP | passive |
