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贴片直插UPD74HC564,UPD74HC390,UPD732008C,UPD74HC08C,4
贴片直插UPD77501GC,UPD75004GB,UPD74HC534,UPD74HC564,4
正品UPD74HC574GS-E2 UPD74HC573GS-T1 UPD74HC564GS-T2