8-Bit RISC MCU, 4MHz, EPROM, I2C/SPI, SSOP-28
8-Bit RISC MCU, 20MHz, 3.5KB EPROM, I2C/SPI/USART, SSOP-28
8-Bit 4MHz RISC MCU, 3.5KB OTP, 128B RAM, SSOP-28