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新APA2308KI-TR TC74HCT374AF TC74HCT174AF T
TC74HCT174AF
TC74HCT138AFN TC74HCT138FN TC74HCT157AF TC74HCT174A原
TC74HCT174APF TC74HCT244AF(EL,F) TC74HCT540AP(F)
TC74HCT174APF/TC74HCT244AF(EL,F)/TC74HCT540AP(F)