# TCA8418 I2C Controlled Keypad Scan IC With Integrated ESD Protection

[Datasheet](https://www.ti.com/lit/ds/symlink/tca8418.pdf?ts=1751500237439)
[Original implementation](https://github.com/AnthonyDiGirolamo/i2c-thumb-keyboard/tree/master) by Anthony DiGirolamo
[Adafruit TCA8418](https://github.com/adafruit/Adafruit_TCA8418)