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BH6317GLU-E2 TA52607 TC74HC670P CD54ACT74F3A 2SC3545-T1B
丝印TC74HC73AF TC74HC691P TC74HC670P TC74HC651P TC74HC640P
307AAP4 MC68HC912B32CFUE8 TC74AC670P SPT50H-842MLD原装
丝印TC74HC670 TC74HC42P TC74HC374 TC74HC32P TC74HC32A
