8-Bit RISC MCU, 20MHz, 7KB EPROM, I2C, SPI, UART, CDIP28
8-Bit 20MHz RISC MCU, 7KB EPROM, SOIC, I2C/SPI/UART
8-Bit 20MHz RISC MCU, EPROM, I2C/SPI/UART, PDIP-28
8-Bit 20MHz RISC MCU, SSOP-28, EPROM, I2C, SPI, UART