Rambus expands its portfolio of DDR5 memory interface chips

SAN JOSE, Calif., July 19, 2022 — Rambus today announced the expansion of its portfolio of DDR5 memory interface chips with the addition of the Rambus SPD (Serial Presence Detect) hub and temperature sensor, complementing the Rambus Record Clock Driver (RCD). DDR5 achieves higher bandwidth and memory capacity by using a new module architecture with an extended chipset. SPD hub and temperature sensors improve DDR5 Dual Inline Memory Module (DIMM) system management and thermal control to deliver superior performance within the desired power envelope for servers, desktops, and laptops.

“New levels of DDR5 memory performance place increased emphasis on signal integrity and thermal management of server and client DIMMs,” said Sean Fan, chief operating officer, Rambus. “With over 30 years of experience in memory subsystem design, Rambus is uniquely positioned to deliver DDR5 chipset solutions that enable breakthrough bandwidth and capacity for advanced computing systems.”

“Intel’s strong collaboration with SPD ecosystem partners, such as Rambus, provides mission-critical chip solutions for next-generation Intel DDR5 systems, scaling the performance of servers, desktops, and laptops to new levels,” said Dr. Dimitrios Ziakas, Vice President of Memory and IO Technologies. at Intel. “Our joint efforts to advance DDR5-based computing systems set the stage for Intel’s DDR5 advance over multiple generations and the next level of performance for data centers and consumers.”

“DDR5 offers a significant performance boost to computing systems,” said Shane Rau, research vice president, Computing Semiconductors at IDC. “However, DDR5 memory modules require new components to operate, components such as SPD hubs and temperature sensors are important components for both client and server systems.”

Part of Rambus’ DDR5 server and client memory interface chipsets, the SPD hub and temperature sensor combine with the RCD to provide high performance, high capacity memory solutions for DDR5 computer systems. The SPD hub and temperature sensor are critical components of a memory module that detect and report important data for system configuration and thermal management. The SPD hub is used in both server and client modules, including RDIMMs, UDIMMs, and SODIMMs, and the temperature sensor is designed for server RDIMMs.

Hub and Rambus SPD (Serial Presence Detect) temperature sensor. Click to improve.

Key features of the SPD hub (SPD5118) include:

  • I2C and I3C bus serial interface support
  • Advanced reliability features
  • Extended NVM space for customer-specific applications
  • Low latency for the fastest I3C bus speeds
  • Integrated temperature sensor
  • Meets or exceeds all JEDEC DDR5 SPD (JESD300-5A) hub operational requirements

Key features of the Temperature Sensor (TS5110) include:

  • Precision thermal detection
  • I2C and I3C bus serial interface support
  • Low latency for the fastest I3C bus speeds
  • Meets or exceeds all JEDEC DDR5 (JESD302-1.01) temperature sensor operational requirements

About Rambus Inc.

Rambus is a provider of cutting-edge chips and silicon IP that makes data faster and more secure. With over 30 years of experience in advanced semiconductors, we pioneer high-performance memory subsystems that solve the bottleneck between memory and processing for data-intensive systems. Whether in the cloud, at the edge, or in your hand, real-time and immersive applications depend on data throughput and integrity. Rambus products and innovations provide the increased bandwidth, capacity and security needed to meet global data needs and deliver ever better user experiences. For more information, visit rambus.com.

Source: Rambus, Inc.