贴片SN74LS145MELGSN74LS148DR2GSN74LS139MR1G¥2.80去看看芯片二极管三极管电容电阻集成电路发布了贴片直插SN74LS148DR2G,SN74LS139MR1G,SN74LS145MELG,4SN74LS139MR1SN74LS13DR2GSN74LS145DG4SN74LS148NSR¥2.20去看看电子元件88888发布了全新SN74LS148NSR SN74LS145DG4 SN74LS13DR2G SN74LS139MR1贴片SN74LS148ML1GSN74LS151DR2GSN74LS148MELG¥20去看看芯片二极管三极管电容电阻集成电路发布了贴片直插SN74LS151DR2G,SN74LS148MELG,SN74LS148ML1G,4贴片SN74LS148ML1SN74LS14DR2GSN74LS148MEL¥2.70去看看芯片二极管三极管电容电阻集成电路发布了贴片直插SN74LS14DR2G SN74LS148MEL SN74LS148ML1 4