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新SN74HC393ADB SN74HC166ANS SN74HC138APW R
CD74HC4052PWT SN74LVC138APW SN74LVC138APWT SN74LVC139APW
ADP1148-003R HS00-99657LF MC68HC705J1A SN74LV138APW请询价
74ACT240SJX 74LVTH240MTCX UPD74HC138GS-E2 SN74LVC138APW原