🔍 Diving Deep into Clock Tree Synthesis for DDR Timing Closure! ⚙️ 👉Contact to join the SDC workshop - https://api.whatsapp.com/send/?phone=919817182494&text=Hi+vlsideepdive%2C+I+have+a+query&type=phone_number&app_absent=0 🧠Let us understand the intricate challenges of designing clock trees for DDR interfaces in ASIC design. Here's a peek into the technical nuances: ⚙️ Complexity Unveiled: The unique demands of DDR, especially in non-clock-gating scenarios, you need to rethink clock-tree synthesis, employing Apollo scripts for precision. 🌳 ⚙️ Precision in Performance: Setting aggressive targets for insertion delay and clock skew (2ns and 300ps for clk_ddr), to align clocks meticulously to meet external memory's stringent 90-phase requirement. ⏲️ ⚙️Navigating Atypical Loads: The specialized IO cell design introduced uncommon clock loads, challenging to specify individual combinational logic cells. A test of adaptability and precision! 🚀 ⚙️Strategic Synthesis: The strategy should also focus on controlling transition delays to ideally be less than 5% of the clock cycle, optimizing buffer capacitance and fanout numbers to achieve skew goals. 🛠️ ⚙️ Balancing Acts: Post-routing ECOs is critical in balancing clock insertion delays, ensuring that clk_ddr, clk_dqs_out, and clk_wr meet our exacting standards. A testament to our meticulous planning and execution! 📐 ⚙️Pad Delay Compensation: Adjustments to compensate for the pad delay in the DQS path are essential, ensuring alignment with the DQS pad's min and max delay. A fine example of our attention to detail! 🎯 These learnings showcase the depth of understanding needed to overcome DDR timing closure challenges. If you want to get the same depth of understanding join our SDC workshop. 👉Contact to join the SDC workshop - https://api.whatsapp.com/send/?phone=919817182494&text=Hi+vlsideepdive%2C+I+have+a+query&type=phone_number&app_absent=0 #EngineeringExcellence #InnovationInTech #ASICDesign #DDRTimingClosure