16-Bit I/O Expander with Serial Interface
| Pin | Name | Type |
|---|---|---|
| 11 | ~{CS} | passive |
| 12 | SCK | input |
| 13 | SI | input |
| 14 | SO | output |
| 17 | A2 | input |
| 16 | A1 | input |
| 15 | A0 | input |
| 18 | ~{RESET} | input |
| 20 | INTA | output |
| 19 | INTB | output |
| 9 | VDD | power_in |
| 10 | VSS | power_in |
| 28 | GPA7 | bidirectional |
| 27 | GPA6 | bidirectional |
| 26 | GPA5 | bidirectional |
| 25 | GPA4 | bidirectional |
| 24 | GPA3 | bidirectional |
| 23 | GPA2 | bidirectional |
| 22 | GPA1 | bidirectional |
| 21 | GPA0 | bidirectional |
| 8 | GPB7 | bidirectional |
| 7 | GPB6 | bidirectional |
| 6 | GPB5 | bidirectional |
| 5 | GPB4 | bidirectional |
| 4 | GPB3 | bidirectional |
| 3 | GPB2 | bidirectional |
| 2 | GPB1 | bidirectional |
| 1 | GPB0 | bidirectional |
