The MB3518 is a low-power DDR3 memory buffer capable of operating speeds up to 1866 MT/s with 2 LRDIMMs in a channel. Assuming quad-rank LRDIMMs at 32 GB density, this equates to 512 GB of capacity at 1866 MT/s in a typical server, which can be doubled to over 1 TB using eight-rank 64 GB LRDIMMs, expected to launch in 2013. This represents a fourfold improvement in relative density at the highest speed grades over standard registered dual-inline memory modules (RDIMMs), enabling computing systems to support more memory and improve application performance. The memory buffer can operate at 1.5 V or 1.35 V, offering the industry's lowest power consumption without sacrificing performance. This translates directly into huge operational cost savings for the end user in power and cooling. Presented by Doug Malech, Product Marketing Manager, Integrated Device Technology, Inc. Learn more at http://www.idt.com/go/DDR3.
2. 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
3. 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
4. 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
5. 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
6. 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
7. 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
8. 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
9. 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
Notas del editor
My name is Douglas Malech.
I am 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 your next LRDIMM design. It enables 1866 MT/s data rates while consuming the least amount of power of any memory buffer on the market today
IDT is the only supplier in 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 that every new device can leverage a very deep knowledge base
All of our competitors have gaps in their memory interface portfolio either because they are relatively new to this market or have decided to opt out of certain device types
LRDIMMs are used in Enterprise class servers.
Each CPU device within the server may have up to 12 DIMM memory slots associated with it.
A typical Enterprise class server may have 2 to 4 tightly coupled CPU devices. This diagram shows 2 CPU devices
2 to 4 CPU’s using up to 12 DIMMs each means that a typical enterprise class server may have between 24 and 48 DIMM slots
Unfortunately, as speed requirements go up, the number of DIMMs 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 / 2DPC while providing 4X the system memory depth of RDIMMs
RDIMMs can achieve 1 speed grade higher to 2133 speeds, but can’t compete on the system memory density of LRDIMMs
This table shows that, at 1333 and 1600 speeds, LRDIMMs using the MB3518 can achieve the same speeds as RDIMMs while allowing 3X system memory
At 1866, LRDIMMs allow 4X 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 50,000 servers with each server possibly containing 24-48 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 available memory buffers on the market today.
We compared our DDR3 memory buffer with the other competitors’ DDR3 memory buffers
We put each of these three buffers through the same test conditions
We measured power consumption at 1.5V and 1.35V operating voltages and at multiple speed grades
We measured in active mode and in idle mode
In all cases, the MB3518 was measured as having the lowest power consumption
IDT’s MB3518 also has additional built-in diagnostic features that differentiate it from other memory buffers.
Memory built-in-self-test based on years of memory design experience
Advanced Error Injection and Reporting to isolate system level DIMM design flaws
Features such as per-pin, on-die oscilloscope capability and built in logic analyzer capture 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 DRAM DQ eye and DQS strobe location within the eye are available and is reported in an easily readable ascii format
The MB3518 enables up to 1866 speeds at 2DPC
It is designed to support next generation 64GB LRDIMMs
Laboratory measurements show it to be the lowest power consuming DDR3 memory buffer in the industry
It has diagnostic support to aid in debug, DIMM voltage and timing margin analysis, and other engineering related activities
It is compliant to the JEDEC memory buffer spec
And it is manufactured and shipped by IDT. A company that has shipped about ½ billion memory interface devices over almost 15 years