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74LVC273PW 74LVC38APW 74LVC74APW 74LVC86APW 74LVQ240SC 芯片
STA850PE UPD780228GF-015 74LVQ240SC IMIFS781BZBT
74LVQ02SC(02SCX 04SC 04SCX 08SC 14SJ 174SCX 240SCX
74LVQ32SC(74LVQ138 74LVT 74SCX SC 2245SJ 240SJ 240SJX
