8-Bit RISC MCU, 20MHz, 3.5KB EPROM, I2C/SPI/USART, QFP
8-Bit MCU, 20MHz, 3.5KB OTP, 33 I/O, TQFP
8-Bit RISC MCU, 20MHz, EPROM, I2C/SPI/USART, PLCC
8-Bit RISC MCU, 20MHz, 3.5KB EPROM, I2C/SPI, PDIP