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贴插DM74LS20M,NXPSEMIUL1015-2
逻辑门 DM74LS20M SOIC-14
DM74LS20M/DM74LS20N/DM74LS240N
DM74LS20M DM74LS20N DM74LS240N
DM74LS20M『NAND GATE, LS SERIES TTL』 现货
DM74LS20M 全新 DM74LS191N 参数