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全新SN74LS245NSG4 SN74LS245DWR2 SN74LS245DWG4 SN74LS244NSR&
贴片直插SN74LS257BML2G，SN74LS245DWR2G，SN74LS257BDR2G，4
贴片直插SN74LS245ML1G，SN74LS244MR2G，SN74LS245DWR2，4
SN74LS245DWR(LX) 缓冲器/驱动器/收发器 SN74LS245DWR(LX) SOP-2
贴片直插SN74LV245ARGYR，SN74LS642DWR2G，SN74LS688DWR2G，4
