s MSM13Q0000/14Q0000 s ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Macrocells for Driving Clock Trees
Oki offers H-clock-tree drivers that minimize clock skew. The advanced layout software uses dynamic
driver placement and sub-trunk allocation to optimize the clock-tree implementation for a particular cir-
cuit. Features of the H-clock-tree driver-macrocells include:
• True RC back annotation of the clock network
• Automatic fan-out balancing
• Dynamic sub-trunk allocation
• Single clock tree driver logic symbol
• Automatic branch length minimization
• Dynamic driver placement
• Allows multiple clock trees
Clock
Figure 4. H-Clock-Tree Structure
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Oki Semiconductor