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贴片直插SN74LS280M,SN74LS273H,SN74LS259D,SN74LS260N,4
TL084BCDR CD74ACT280M SN74LS02D CD74HC164M CD74HC164MT
SN74HC4066DT CD74ACT02M CD74HC280MT SN74LS27DR TL074CD
LP2901D LM339M/NOPB SN74F280BD SN74LS07D SN74LS08D TL2842BD