AMB0483D0 Integrated Device Technology, AMB0483D0 Datasheet - Page 2

• Manufacturer Part Number: AMB0483D0
• Description: Improve Fb-dimm Performance With Idt Advanced Memory Buffers
• Manufacturer: Integrated Device Technology

Features
Leverages high-speed serial technology for DRAM interface
Supports 3.2, 4.0 and 4.8 Gbits serial speeds (DDR2-533/667/800)
Support for 14 northbound lanes (read) and 10 southbound lanes (write)
Support for up to 8 DIMMs per channel
Can be used as a repeater for extending FB-DIMM links
Supports failover and channel detection error modes
Built to industry standard JEDEC support
SMBus protocol interface with PEC support
Testing features supported include:
– Integrated thermal sensor and status indicator
– Supports MEMBIST, IBIST and virtual host mode design-for-test functions
– Transparent mode and direct access mode for DRAM testing
AMB protocol supports high-speed lane-to-lane de-skewing
®
® 2008 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are registered trademarks of Integrated Device
Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.
Printed in USA 3-08/DG/BWD/HOP/2k
Reduce your FB-DIMM Power with IDT AMB+
The IDT AMB+ family of ultra-low power AMB devices offers unparalleled power savings over standard
AMB offerings. This family of devices leverages the industry-proven AMB design and systems expertise
that has made IDT the market leader for memory interface solutions. With regulated (JEDEC plug and play)
and unregulated versions, an unparalleled feature set, frequencies up to 800MHz and standard and low
voltage DRAM support, the AMB+ sets a new standard for next generation FB-DIMM designs. By leveraging
the capabilities of low voltage core and DRAM supplies, power savings greater than 50% are achievable
versus today’s standard power AMB devices. This translates into a dramatic improvement in overall cost and
energy efficiency, both from power and cooling, when AMB+ based memory subsystems are used in
today’s new crop of advanced servers and workstations.
For complete parametric information, technical documentation, AMB-related white papers and press releases,
as well as comprehensive information on the wide variety of related parts that IDT offers, please visit
www.IDT.com/go/amb
You can also receive IDT product-related newsletters and updates and find local distributors by registering
at myIDT.com. Select the myIDT menu on the upper right tab of the www.IDT.com web page, and select
“Register for myIDT” or go directly to www.IDT.com/go/register.
100%
90%
80%
70%
60%
50%
40%
0%
Type of AMB technology Ultra low power FB-DIMM enabled by IDT AMB+
Current Industry AMB (1.5Vcc / 1.8Vdd)
100%
Current Industry AMB (1.5Vcc / 1.5Vdd)
94.29%
Benefits
• Serial technology provides increased scalability for future growth; therefore, meeting
• Minimizes memory interface pin-count to ease board design issues
• PC boards have fewer layers and simpler trace routing which reduce manufacturing
• High-speed memory support for increased performance
• Multiple speed FB-DIMMs can be built using the same product
• Optimized architecture for real-world usage patterns
• Higher flexibility in memory size selection allowing user to utilize cost-effective
• Increased expandability beyond traditional DIMMs, for example, systems with 4 channels
• Allows greater flexibility of memory subsystem placement within a system
• Increased data channel redundancy that minimizes system down time and increases
• Allows compatibility for end-user plug & play
• Allows alternate access mechanism to the AMB configuration and status registers
• Built in self-test modes allow enhanced test coverage without the need for expensive
• Eases debugging tasks
• Reduces the need for time consuming bit-length matching of PC board traces
the needs of increasing server processing power
and design costs.
DRAM sizes
can support up to 128 GB of memory using 4 GB DIMMs
system reliability
test equipment
73%
AMB+ Regulated (1.5Vcc / 1.8Vdd)
65%
AMB+ Regulated (1.5Vcc / 1.5Vdd)
54%
AMB+ Unregulated (1.1Vcc / 1.8Vdd)
AMB+ Unregulated (1.1Vcc /1.5Vdd)
45%
FLYR-AMB-038