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全新SN54HCT139J SN54HCT138J SN54HCT123J SN54HCT109J SN54HC75
CD54HCT123F3A 54HCT123 SN54HCT123J 进口双列16直插脚DIP陶瓷封
贴片直插SN54HCT161F SN54HCT123J SN54ALS00AT SN54ALS541J 5