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全新SN54HC245J SN54HC244J SN54HC244F SN54HC243J SN54HC241J
全新SN54HC245F3A SN54HC244F3A SN54HC240J/F SN54HC164-SP
CD54HC244F MC54HC244AJ SN54HC244J 进口20插脚DIP陶封 74HC244
全新SN54L20J/883B SN54HCT244F3A SN54HC191TDE2 SN54HC191TDE1
SN54AC04J SN54AC08J SN54AC14J SN54AC32J SN54F244J SN54HC04J