8-Bit 4MHz RISC MCU, OTP, I2C/SPI/UART, 22 I/O, PDIP28
8-Bit 4MHz RISC MCU, 7KB EPROM, PDIP-28, I2C/SPI/UART
8-Bit RISC MCU, 4MHz, OTP, I2C, SPI, UART, PDIP-28