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贴插SN74HC574APWR/SN74HCT14DRG4/SN74HC138APWR/Y
SN74LV157APWR SN74HC153PWR SN74HCT138PWR SN74HCT139PWR
SN74HCT125N/SN74HCT138APWR/SN74HCT138D
SN74HCT125N SN74HCT138APWR SN74HCT138D
新74LVC245ADWR 74LVC257APWR SN74HCT138DR R