8-Bit RISC MCU, 20MHz, 14KB Flash, I2C/SPI/UART, PDIP-40
8-Bit MCU, 14KB Flash, 20MHz, I2C/SPI/UART, 44-QFN
8-Bit RISC MCU, 20MHz, FLASH, TQFP, I2C, SPI, UART