Computer composition principle Drawing

1, add the library, open the software to add the library:

Also open the Add Library tool for Protel99se, design, add libraries,

Click Sch below the software above to add the required libraries. Here are the libraries where several of the commonly used components

74sl0. Under Protel DOS Schematic TTL.lib

808.: Under Protel DOS Schematic Intel.lib

74s..../27s ... Under Protel DOS Schematic Memory Devices.lib

Computer composition principle Drawing