November 12, 2025 /SemiMedia/ — Renesas Electronics Corporation has introduced the industry’s first sixth-generation Registered Clock Driver (RCD) for DDR5 RDIMMs, marking a new milestone in memory interface technology with speeds reaching 9600 MT/s — a 10% improvement over its previous generation.

The new Gen6 DDR5 RCD enhances signal integrity and power efficiency, addressing the increasing memory bandwidth requirements of AI, high-performance computing (HPC), and data center workloads. It remains backward compatible with Gen5 platforms, allowing a seamless upgrade path for next-generation server systems.

Renesas has integrated an expanded Decision Feedback Equalization (DFE) architecture offering eight taps and 1.5mV tuning granularity for precise margin control. The new Decision Engine Signal Telemetry and Margining (DESTM) function provides real-time diagnostic visibility, improving reliability at ultra-high data rates.

“The explosive growth of generative AI is driving higher SoC core counts, increasing the need for faster and more efficient memory interfaces,” said Sameer Kuppahalli, Vice President of Renesas’ Memory Interface Division. “Our sixth-generation DDR5 RCD demonstrates Renesas’ continued leadership in delivering cutting-edge memory technologies.”

Indong Kim, Vice President of DRAM Product Planning at Samsung Electronics, added, “Samsung and Renesas have worked closely on several generations of memory interface products, including the qualification of Gen5 DDR5 RCD and PMIC5030. We’re now integrating the Gen6 RCD into our DDR5 DIMMs to meet the demands of AI and HPC applications.”

Renesas’ RRG5006x Gen6 RCD series is currently sampling to key DRAM partners, with mass production expected in the first half of 2027. for more information, please visit www.renesas.com/ddr5.