Mikroe EXPAND 6 Click uses an I2C configurable multi-port I/O expander with independently configurable pins as bi-directional input/outputs or PWM outputs. The board features the Cypress Semiconductor CY8C9520A 20-bit I/O expander with EEPROM and 4 independently configurable 8-bit PWM outputs. The CY8C9520A operates as two I2C slave devices. First as a multi-port I/O expander, and second as a serial EEPROM with 3 Kbyte address space. It has a user default storage, flexible I2C address configuration, and a programmable interrupt function. https://elecena.pl/product/17296811/mikroe-expand-6-click 2020-11-20 https://elecena.pl/product/17296811/mikroe-expand-6-click 2025-03-23