8-Bit RISC MCU, 20MHz, EPROM, TQFP, 33 I/O, 256B RAM
8-Bit RISC MCU, 20MHz, 7KB EPROM, PLCC, I2C, SPI, UART
8-Bit MCU, 20MHz, EPROM, I2C/SPI/UART, PDIP-40
8-Bit MCU, 7KB EPROM, 20MHz, 44MQFP, I2C, SPI, UART
