track is the path in which nets can pass through.
Track is generally used as a unit to define the height of the std cell. a 12 track cell will be taller than a 9 track cell. a 12 track std cell will be taller , that means more metal 1 routing space is available within the cell, hence cells will be faster. where as in a 9 track cell, the cell will be compact, but speed is less compared to 12 track.
9track -> less area, less speed compared to 12 track.
12tarck -> more area, more speed compared to 9 tracks.
Wide performance range for all types of designs
- Ultra high density/low power; 7 or 8-track (SC7/SC8) libraries for cost critical applications
- High density; 9 or 10-track (SC9/SC10) libraries for mainstream applications
- High performance; 12-track (SC12) libraries for speed critical designs
- Variety of architectures based on different track heights and cell designs cover a wide performance, power and area range.
- High Performance libraries are 20% faster than High Density mainstream libraries
- Ultra High Density versions based on smallest cell height require 20% less area and power than mainstream libraries
