资料:用PROTELL 99 SE如何绘制4层PCB.

资料:用PROTELL 99 SE如何绘制4层PCB.-Information: how to use PROTELL 99 SE Drawing 4 layer PCB.

是一款功能强大的EDA仿真软件，拥有丰富的库元件，尤其是动态外设的仿真极大的补充了其他仿真软件的不足。-Is a powerful simulation EDA software, a wealth of library components, especially the dynamic simulation of the peripherals to add a great deal of the lack of other sim