SN74AHCT139NSR规格参数
相关型号
SN74AHCT139NSRE4 SN74AHCT139NSRG4 SN74AHCT139PW SN74AHCT139PWE4 SN74AHCT139PWG4 SN74AHCT139PWLE SN74AHCT139PWR SN74AHCT139PWRE4 SN74AHCT139PWRG4 SN74AHCT14D