贴片SN74LS157MELSN74LS153MR1SN74LS156DR2￥2.20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SN74LS157MEL SN74LS153MR1 SN74LS156DR2 4贴片SN74LS153MELSN74LS151MELSN74LS151MR1￥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SN74LS153MEL SN74LS151MEL SN74LS151MR1 4贴片SN74LS156DR2GSN74LS153ML1GSN74LS153MR1G￥2.30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SN74LS156DR2G，SN74LS153ML1G，SN74LS153MR1G，4贴片SN74LS￥2.50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SN74LS157DG/SN74LS153MG/SN74LS14MR1/SN74LS153DG/4
