The Nangate Open Cell Library is a generic open-source, standard-cell library provided for the purposes of research, testing, and exploring EDA flows. This library is purposely non-manufacturable.

Nangate has developed and donated this library to Si2 for open use. The library is intended to aid university research programs and organizations such as Si2 in developing flows, developing circuits and exercising new algorithms. In its first release the Open Cell Library contains 38 different functions ranging from buffers to scan flip-flops with set and reset. All the different cell functions come in multiple drive strength variants end up with more than 100 different cells in the library.

The library was generated using Nangate's Library Creator™ and the 45nm FreePDK Base Kit from North Carolina State University (NCSU) and characterization was done using the Predictive Technology Model (PTM) from Arizona State University (ASU). The FreePDK Base Kit is supported by Professors Rhett Davis and Paul Franzon and their research teams and is also available for download.

Because the library was generated using a non-optimized Open PDK, it was not created to be an optimized library for any real-life applications.

Benchmarking of this library against any other library makes no sense and any use for comparisons are hereby prohibited. The use of this library for commercial tool benchmarking is also prohibited.

The library will be enhanced over time based on user suggestions and requests. If you have suggestions for development of the library then please submit them to the project New Feature Request tracker. Report bugs in our Library Bug tracker and join the Library Discussion Forum to solicit help and suggestions from other library users.