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74HCT139 54HCT139 CD54HCT139F SN54HCT139J 进口16插脚CDIP陶封
全新SN54HCT139J SN54HCT138J SN54HCT123J SN54HCT109J SN54HC75
贴片直插SN65ALS180N SN54S139J-B SN54HCT374J SN54LS125AJ 5
