8-Bit RISC MCU, 4MHz, 3.5KB OTP, 128B RAM, I2C/SPI/USART, PLCC
8-Bit RISC MCU, 4MHz, 3.5KB OTP, QFP44, I2C/SPI/USART
8-Bit RISC MCU, 4MHz, 3.5KB OTP, 33 I/O, PDIP
8-Bit MCU, 3.5KB OTP, 20MHz, I2C/SPI/USART, 44TQFP