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How Memory Design Optimizes System Performance


Exponential increases in data and demand for improved performance to process that data has spawned a variety of new approaches to processor design and packaging, but it also is driving big changes on the memory side. While the underlying technology still looks very familiar, the real shift is in the way those memories are connected to processing elements and various components within a syste... » read more

DDR Memory Test Challenges From DDR3 to DDR5


Cloud, networking, enterprise, high-performance computing, big data, and artificial intelligence are propelling the development of double data rate (DDR) memory chip technology. Demand for lower power requirements, higher density for more memory storage, and faster transfer speeds are constant. Servers drive the demand for next-generation DDR. Consumers benefit when existing and legacy generati... » read more

Setting The Memory Controller Free From Managing DRAM Maintenance Ops (ETH Zurich)


A new technical paper titled "A Case for Self-Managing DRAM Chips: Improving Performance, Efficiency, Reliability, and Security via Autonomous in-DRAM Maintenance Operations" was published by researchers at ETH Zurich. Abstract: "The rigid interface of current DRAM chips places the memory controller completely in charge of DRAM control. Even DRAM maintenance operations, which are used to en... » read more

Verifying A DDR5 Memory Subsystem


With the increasing complexity of DDR memory models and a vast set of configurations, it has become a daunting experience for verification engineers to verify memory subsystems. With the help of DDR5 Questa VIP and its unique features, engineers can maximize their debugging capabilities and achieve their verification goals quickly and efficiently. This paper introduces the Siemens EDA DDR5 and ... » read more

Week in Review: Design, Low Power


Acquisitions Renesas completed its acquisition of Reality Analytics, which specializes in embedded AI and TinyML solutions for advanced non-visual sensing in automotive, industrial and commercial products. Siemens Digital Industries Software will acquire Zona Technology, which develops aerospace simulation software. Siemens plans to integrate that software into its wXcelerator and Simcenter... » read more

DDR5: How Faster Memory Speeds Shape The Future


Faster data processing requires faster memory. Double data rate synchronous dynamic random-access memory (DDR SDRAM) enables the world’s computers to work with the data in memory. DDR is used everywhere — not just in servers, workstations, and desktops, but it is also embedded in consumer electronics, automobiles, and other system designs. DDR SRAM is used for running applications and d... » read more

IC Reliability Burden Shifts Left


Chip reliability is coming under much tighter scrutiny as IC-driven systems take on increasingly critical and complex roles. So whether it's a stray alpha particle that flips a memory bit, or some long-dormant software bugs or latent hardware defects that suddenly cause problems, it's now up to the chip industry to prevent these problems in the first place, and solve them when they do arise. ... » read more

ETH Zurich Introduces ProTRR, in-DRAM Rowhammer Mitigation


New technical paper titled "PROTRR: Principled yet Optimal In-DRAM Target Row Refresh" from ETH Zurich. The paper was presented at the 43rd IEEE Symposium on Security and Privacy (SP 2022), San Francisco, CA, USA, May 22–26, 2022. This new paper introduces ProTRR, an "in-DRAM Rowhammer mitigation that is secure against FEINTING, a novel Rowhammer attack." The related video presentation can... » read more

Scaling DDR5 RDIMMs To 5600 MT/s


Looking forward to 2022, the first of the DDR5-based servers will hit the market with RDIMMs running at 4800 megatransfers per second (MT/s). This is a 50% increase in data rate over top-end 3200 MT/s DDR4 RDIMMs in current high-performance servers. DDR5 memory incorporates a number of innovations, such as Decision Feedback Equalization (DFE), and a new DIMM architecture which enable that speed... » read more

Servers And The Drive to DDR5


This IDC Technology Spotlight Study, sponsored by Rambus, discusses server demands on DRAM and different workloads. DRAM must dynamically adjust to the needs of these disparate workloads. The history of dynamic random-access memory (DRAM) is characterized by the ability of the technology to adapt to the increasingly specialized real-time memory requirements of the applications that utilize it. ... » read more

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