■ MG113P/114P/115P/73P/74P/75P ■ ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
Macrocells for Driving Clock Trees
Oki offers 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 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
• Up to four clock trunks
Clock
Figure 11. Clock Tree Structure
12
Oki Semiconductor
OKI [ OKI ELECTRONIC COMPONETS ]
