Wenf.Yeh said:Hi David:
fanout is the number of cells drived by one output signal. just a number , no unit!
This means that max_fanout has unit consistent with lib cell fanout load.assume these commands returns 0.25 and 3 resp. if you have following in your script, set_max_fanout 6 [get_ports IN1].
DC can load port IN1 with 6/0.25 = 24 TSMC_INV1_A1 cells and 6/3 =2 TSMC_INV1_A25 cells.