8-Bit MCU, 20MHz, 7KB OTP, I2C/SPI/UART, 44PLCC
8-Bit RISC MCU, 20MHz, EPROM, QFP, I2C, SPI, UART
8-Bit RISC MCU, 20MHz, EPROM, TQFP, 33 I/O
8-Bit RISC MCU, 20MHz, EPROM, I2C/SPI/UART, PDIP