8-Bit RISC MCU, 20MHz, 3.5KB EPROM, I2C/SPI/USART, PLCC
8-Bit MCU, 3.5KB OTP, 20MHz, 33 I/O, TQFP, I2C/SPI/USART
8-Bit MCU, 3.5KB OTP, 20MHz, I2C/SPI/USART, 44MQFP