Published on February 19, 2014
MB3518 DDR3 Memory Buffer World’s Leader in Memory Interface Products Douglas Malech Product Marketing Manager Memory Interface Products October 2012 ©2012 Integrated Device Technology, Inc.
Memory Interface Industry Leader DDR3 DDR2 Register Memory Buffer Register MB3518 Company B DDR2 Memory Buffer Company A DDR3 Market Leader Market Leader Market Leader Not Offered Not Offered Not Offered Not Offered Not Offered Company C www.IDT.com Temperature Sensor + SPD Not Offered PAGE 2 Not Offered
Strategic Fit – Server Overview Voltage Regulator CPU (+MCH) (QPI/HT3 to PCIe) PCIe PCIe PCIe Southbridge (ICH) PCIe PCIe Bridge Server Panel Backplane Voltage Regulator www.IDT.com Temp Sensor Flash Controller PCIe PCIe PCIe PCI System Management Controller Current Monitor PCIe Switch Clocks 10Gb Ethernet PCIe PCIe SIP PAGE 3 Memory Buffer Memory Buffer Northbridge SAS /SATA DRAM DRAM DRAM DRAM DRAM DRAM DRAM DRAM DRAM TS+S PD TS+S PD DRAM TS+ SPD DRAM DRAM DRAM DRAM DRAM DRAM DRAM DRAM DRAM SLC/MLC SLC/MLC SLC/MLC SLC/MLC NAND Flash NAND Flash NAND Flash NAND Flash Temp Sensor DRAM DRAM DRAM DRAM DRAM DRAM TS+S PD TS+S PDTS+ Memory Buffer DRAM DRAM DDR3 DRAM DRAM DDR3 DRAM DRAM DDR3 DRAM DRAM DDR3 DRAM DDR3 QPI/HT3 QPI/HT3 Temp Sensor TS+S PD TS+S PD TS+ DRAM SPD Memory Buffer TS+S PD TS+S PD TS+ DRAM SPD (+MCH) Clocks Ethernet DRAM DRAM DRAM DRAM DRAM DRAM DRAM DDR3 DRAM DRAM DDR3 DRAM DDR3 CPU QPI/HT3 DRAM DRAM DRAM DRAM DRAM DRAM DRAM SPD DRAM DRAM DRAM DRAM DRAM DRAM DRAM DRAM DRAM SLC/MLC SLC/MLC SLC/MLC SLC/MLC NAND Flash NAND Flash NAND Flash NAND Flash Flash Memory Expansion Card (Cache) XAUI SERVER SYSTEM SOLUTION
Key Value Proposition/Benefits ●2 DPC at 1866, 1.35V Leading industry LRDIMM performance ● Up to 4x or more increase in absolute memory capacity over RDIMMs 3X 3X 4X RDIMM LRDIMM RDIMM 2133 www.IDT.com PAGE 4
Lowest Power Consumption ●Best ●Lab choice for “Green” data center initiatives results show MB3518 has the lowest power consumption •MB3518 •1.5V / 1.35V •Multiple •Active www.IDT.com / Competitor A / Competitor B speed grades modes / Idle modes PAGE 5
Beyond JEDEC: Built-in Diagnostics ● MemBIST memory built in self test ● Advanced error injection and reporting ● Per-pin, ● Built-in on-die oscilloscope capability logic analyzer capture ● Intelligent access to isolated DRAM interface DRAM “DQ eye” DRAM “DQS” strobe LRDIMM CPU www.IDT.com MB3518 DDR3 DDR3 DDR3 DDR3 PAGE 6
MB3518 Features Benefits Features Increased speed grade •Up to DDR3-1866 Increased memory •Enables 64GB LRDIMMs Lowest power •Laboratory measurements Diagnostic Support •MemBist •Transparent mode •Error injection and reporting •Various integrated scope tools Industry compliance •JESD 79-3E DDR3 spec compliant •SMBus 2.0 spec compliant •1.5V / 1.35V Vdd •72 bit data path •Up to 8 rank LRDIMMs •On die temperature sensor •FcBGA 0.65mm pitch – 588 balls •13.5mm x 25.2mm www.IDT.com PAGE 7
World’s Leader in Memory Interface Products Visit www.idt.com for more information about IDT’s memory interface products, www.IDT.com PAGE 8
Transcript My name is Douglas Malech. I'm the Product Marketing Manager for IDT's memory-interfacing products. This presentation will concentrate on the IDT MB3518 DDR3 memory-buffer product. The MB3518 DDR3 memory buffer is the best choice for the next LRDIMM design. It enables 1866 mega transfers per second data rates, while consuming the least amount of power of any memory buffer on the market today. IDT is the only supplier of the memory-interfacing market space to offer leading products in every DDR generation and DIMM type. This shows our strong commitment to remain the market leader in this industry. As you can see from this table, there is no other company in the world that has a product portfolio like IDT. We’ve dedicated ourselves to this market for almost 15 years, which means every new device can leverage a very deep knowledge base. All of our competitors have gaps in their memory-interface products. Either because they are relatively new to this market, or have decided to opt out of certain device types. LRDIMMs are used in enterprise-classed servers. Each CPU device within the server may have up to 12 DIMM memory slots associated with it. A typical enterprise-classed server may have two to four tightly-coupled CPU devices. This diagram shows two. Two to four CPUs using up to 12 DIMMs each means that a typical enterprise-classed server may have between 24 and 48 DIMM slots. Unfortunately, as speed requirements go up, the number of DIMM slots that can be populated in the system goes down. Different speed and memory densities can be realized by choosing the right RDIMM or LRDIMM solution. LRDIMMs using IDT'S MB3518 can achieve best-industry performance at 1866 1.35v two DIMMs per channel, while providing four times the system-memory data of RDIMMs. RDIMMs can achieve one speed grade higher to 2133 speeds, but can't compete on the system-memory densities of LRDIMMs. This table shows that at 1333 and 1600 speeds, LRDIMMs using the MB3518 can achieve the same speeds as RDIMMs while allowing three times system memory. At 1866 LRDIMMs allow four times system memory. At 2133 RDIMMs are the only choice, but the speed gap used to be a lot wider. Data centers today are demanding lower overall power usage to comply with green initiatives. With a typical data center containing as many as 50 thousand servers, with each server possibly containing 24 to 48 DIMMs, every watt saved per DIMM is multiplied many times over, and can potentially translate into millions of dollars of savings in operating costs. This is why power consumption is such an important parameter for today's memory-buffer devices. The MB3518 achieves the lowest power of all memory-buffers on the market today. We compared our DDR3 memory buffer with the other competitors' DDR memory buffers. We put each of these three buffers through the same test conditions. We measured power consumption at 1.5 and 1.35 volts, and multiple speed grades. We measured in active modes and idle modes. In all cases, the MB3518 was measured as having the lowest power consumption. MemBIST memory built in self test, advanced air injection and reporting. Per-pin on-die oscilloscope capability, and built-in logic analyzer capability, allow intelligent access to the DRAM interface that is completely isolated from the host controller or DIMM ATE equipment. These tools allow IDT to easily report LRDIMM voltage and timing margins on the DRAM side, even though the DRAM interface is completely isolated from the host controller. As you can see from this slide, access to DRIMM DQI, and DQS strobe location within the I, are available, and are reported in an easily-readable ASCII format. The MB3518 enables up to 1866 speeds at two DIMMs per channel. It's designed to support next-generation, 64 gigabyte LRDIMMs. Laboratory measurements show it to be the lowest-consuming DDR3 memory buffer in the industry. It has diagnostic support to aide in debug, DIMM voltage and timing margin analysis, and other engineering-related activities. It has compliant to the JEDEC memory buffer spec, and it is manufactured and shipped by IDT, a company that has shipped about a half a billion memory-interface devices over almost 15 years. For further information, you can visit us at IDT.com. www.IDT.com PAGE 9
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