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