World's Lowest Voltage Level Shifting GPIO with LED driver and Keypad Engine
| Pin | Name | Type |
|---|---|---|
| 24 | SDA | bidirectional |
| 25 | SCL | input |
| 11 | OSCIO | bidirectional |
| 26 | ADDR0 | input |
| 10 | ADDR1 | input |
| 23 | ~{RESET} | input |
| 12 | VDDM | power_in |
| 4 | VCC1 | power_in |
| 18 | VCC2 | power_in |
| 27 | I/O0 | bidirectional |
| 28 | I/O1 | bidirectional |
| 1 | I/O2 | bidirectional |
| 2 | I/O3 | bidirectional |
| 5 | I/O4 | bidirectional |
| 6 | I/O5 | bidirectional |
| 7 | I/O6 | bidirectional |
| 8 | I/O7 | bidirectional |
| 13 | I/O8 | bidirectional |
| 14 | I/O9 | bidirectional |
| 15 | I/O10 | bidirectional |
| 16 | I/O11 | bidirectional |
| 19 | I/O12 | bidirectional |
| 20 | I/O13 | bidirectional |
| 21 | I/O14 | bidirectional |
| 22 | I/O15 | bidirectional |
| 9 | ~{INT} | output |
| 3 | GND | power_in |
| 17 | GND | power_in |
| 29 | GND | power_in |
