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SN74LS161DR DM74LS161M LS161A SOP16 逆变器逻辑芯片74LS161ADR
贴片直插DM74LS161A,DM74LS160A,DM74LS155N,DM74LS156M,6
拍前联系价格另议DM74LS161AN ULN2023A BCM856SE6327 元器件