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新74LS367APC 74LS109APC B340A-13-F 74LS257ADR
新74HC257ADR SN74LS10DR BA6901F-E2 SN74LS107N
SN74ALS157AD SN74ALS257ADR SN74LV166AD AM26C31CD SN74LS367AD
丝印MC74LS365ANDS-MC74LS273DWR2-MC74LS273ADR2-MC74LS257BDR2
SN74LS166ADR 173/279/365/367/368/257BNSR/259BDR 贴片SOP16