HD44780 Engineering Support November 30, 2021 17:28 Updated Download the HD44780U dot matrix LCD controller/driver datasheet from the link below. HD44780.pdf 300 KB Download Related articles Interfaces - Serial, Parallel, and SPI Interface HX8218 ST7066U FSA506 NHD-0216MW/ 0216CW/ 0220CW/ 0420CW