Issue link: https://resources.pcb.cadence.com/i/1310863
www.cadence.com 2 Allegro PCB Librarian • Supports the creation of reusable shape libraries • Enables real-time, online verification • Provides batch verification scripts • Supports symbol property templates • Includes configurable rule checkers for both schematic symbols and footprints • Provides strong metadata support to enable built-in version management Part Creation Large–pin-count devices are becoming common for off-the-shelf components. Creating these large–pin-count parts for schematic and PCB layout can take hours or even days without special tools to accelerate part creation. The powerful import and spreadsheet editing features of Allegro PCB Librarian aid in manipulating large–pin-count part data. Users can quickly split pins across multiple symbols, map pin names to pin numbers, and specify the visibility of power and ground pins. A powerful graphics editor makes symbol creation easy and quick. Users can not only create complex IEC and IEEE shapes to represent pins and functions, but also save them as reusable library elements. The Allegro PCB footprint wizard makes it easy to create footprints by providing templates for most commonly used parts. Using the footprint wizard, users can accurately create complex footprints with thousands of pins in minutes. Allegro PCB Librarian also provides the ability to quickly associate Hardware Description Language (HDL) models with schematic parts for both Verilog ® and Verilog Hardware Descripton Language (VHDL) models for use in system-level digital simulation. In Allegro PCB Librarian, all changes made to a part are tracked and the differences between part versions are captured and saved automatically. This removes the burden on librarians to record all changes made to a part. Check-sum verification is integrated into the system and tracks any modification to parts made outside the library system. This protects the data against unauthorized modifications and notifies librarians when a modified part is opened in the system. Multi-Vendor Support Allegro PCB Librarian allows users to create symbols for Allegro Design Entry HDL, Cadence OrCAD ® Capture, Mentor Graphics Viewdraw/DxDesigner, and Mentor Graphics Design Architect. Part information can also be exported in comma-separated values (CSV) and XML formats. This allows single sourcing of part data in companies where librarians need to support designs teams who use multiple schematic editors with Allegro PCB Designer. Direct export to multiple schematic editor formats makes it easy to develop parts in a single toolset for use with multiple schematic editors. Export in XML can be used to publish part data for external access or verifica- tion. Exporting text files allows users to store "electronic datasheets." The ability to convert from CSV to PDF helps in the migration of parts from other vendors. Allegro PCB Librarian also allows users to save parts in formats compatible with older releases of Allegro PCB Designer and Allegro Design Entry HDL. This enables users to adopt the latest librarian releases and features while still support- ing previous releases of Allegro solutions. Figure 2: Integrated spreadsheet and graphics editor Figure 3: Symbols with reusable shapes