DS89C440-MNG,IC MCU FLASH 32KB 25MHZ 40-DIP
DS89C440-MNL,IC MCU FLASH 32KB 33MHZ 40-DIP
DS89C440-QNG,IC MCU FLASH 32KB 25MHZ 44-PLCC
DS89C440-QNL,IC MCU FLASH 32KB 33MHZ 44-PLCC
DS89C450-ENG,IC MCU FLASH 64KB 25MHZ 44-TQFP
DS89C450-ENG+,IC MCU FLASH 64KB 25MHZ 44-TQFP
DS89C450-ENL,IC MCU FLASH 64KB 33MHZ 44-TQFP
DS89C450-ENL+,IC MCU FLASH 64KB 33MHZ 44-TQFP