SN74LS424规格参数
相关型号
SN74LS42D SN74LS42DE4 SN74LS42DG4 SN74LS42N SN74LS42NE4 SN74LS42NS SN74LS42NSR SN74LS42NSRE4 SN74LS42NSRG4 SN74LS440DW