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贴片直插SN74LS245MR1G,SN74LS244ML2G,SN74LS245MELG,4
贴片直插SN74LS245ML1G,SN74LS244MR2G,SN74LS245DWR2,4
贴片直插SN74LS244FNR2,SN74LS240ML1G,SN74LS240MR2G,4
贴片直插SN74LS244DWR2,SN74LS240ML2G,SN74LS240MR1G,4