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Answered by
rovinski
Jan 12, 2024
Replies: 2 comments 3 replies
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This is the concept of database units. Database units defined as For sky130 the DBU scale is 1000. In your example, dx = 2500 dbu = 2500/1000 um = 2.5um. For gf180 the DBU scale is 2000. In your example, dx = 5120 dbu = 5120/2000 um = 2.56um. |
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Answer selected by
b224hisl
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thank you very much! |
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This is the concept of database units. Database units defined as
X
/um whereX
is the database unit scale.X
is defined in the technology LEF.For sky130 the DBU scale is 1000.
OpenROAD-flow-scripts/flow/platforms/sky130hd/lef/sky130_fd_sc_hd.tlef
Line 27 in 5bd5bff
In your example, dx = 2500 dbu = 2500/1000 um = 2.5um.
For gf180 the DBU scale is 2000.
OpenROAD-flow-scripts/flow/platforms/gf180/lef/gf180mcu_2LM_1TM_30K_7t_tech.lef
Line 40 in 5bd5bff
In your example, dx = 5120 dbu = 5120/2000 um = 2.56um.