st789ST7789 Datasheet. Part #: ST7789H2. Datasheet: 3MbKb314P. Manufacturer: Sitronix Technology Co., Ltd.. Description: single-chip controllerdriver for 262K-colorSnificantly optimized for 16MHz AVR Arduino boards (2.5-5x faster than other libraries). Achieved 6.9Mbps SPI transfer rate (at DIV216MHz clock) In compatiliblity mode it could work with other MCUs, but I didn't test it.