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新HD74HC595FPEL TC74VHC4040FK HD74HC175FPEL T
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全新HD74HC175FPEL HD74HC174TELL HD74HC174RPEL HD74HC174FPER
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全新HD74HC193FPEL HD74HC192FPEL HD74HC191RPEL HD74HC175TELL
贴插74LVC245ATELL-HD74HC540FPEL-SN74LV175APWR-B
原TC74HC30AF LB1721M-TM-R TC74AC175F HD74LS08FPEL
全新HD/SN74HC163/165/175/253/368/4020 ANSR/NS/NSR FPEL SOP16
