[{"title":"( 4 个子文件 593KB ) AT89C51RE2-SLSUM 8051 单片机AltiumDesigner原理图和PCB库-电路方案","children":[{"title":"AltiumDesigner 库文件使用指南.doc <span style='color:#111;'> 539.50KB </span>","children":null,"spread":false},{"title":"FhqFqj_eBTn1KMzc9FrTz658R8wa.png <span style='color:#111;'> 89.38KB </span>","children":null,"spread":false},{"title":"AT89C51RE2-SLSUM.zip <span style='color:#111;'> 16.10KB </span>","children":null,"spread":false},{"title":"FsAaGmVNEcMaOCwWHWOyDUhQXvQz.png <span style='color:#111;'> 57.87KB </span>","children":null,"spread":false}],"spread":true}]