8-Bit 4MHz RISC MCU, 7KB EPROM, I2C/SPI/UART, PDIP-40
8-Bit RISC MCU, 4MHz, 7KB EPROM, I2C/SPI/UART, PQFP44
8-Bit RISC MCU, 4MHz, EPROM, I2C/SPI/UART, PLCC
8-Bit RISC MCU, 4MHz, EPROM, TQFP, 33 I/O, 7KB, 5V