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IDTAMB0480 fiches techniques PDF

IDT - ADVANCED MEMORY BUFFER

Numéro de référence IDTAMB0480
Description ADVANCED MEMORY BUFFER
Fabricant IDT 
Logo IDT 





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IDTAMB0480
ADVANCEDMEMORYBUFFERFORFULLYBUFFEREDDIMM
COMMERCIAL TEMPERATURE RANGE
ADVANCED MEMORY BUFFER
FOR FULLY BUFFERED DIMM
MODULES
IDTAMB0480
PRODUCT
BRIEF
FEATURES:
Advanced Memory Buffer for Fully buffered DIMMs
3.2 and 4 Gbit/s serial speeds (DDR2-533 and 667 DRAM)
Support for up to eight DIMMs per channel
Repeater Mode for extending FB-DIMM links
Northbound and Southbound single lane fail over and channel
error detection
Voltage and Timing margin high-speed I/O test capability
Fully Supports the FB-DIMM configuration register set
Test features supported include:
- Integrated thermal sensor and status indicator
- Supports MEMBIST, IBIST and Virtual Host mode
- Transparent mode and direct access mode for DRAM testing
Complies with JEDEC Architecture and Protocol Specification
Available in 655 ball FCBGA package
EXPANDED FEATURES:
• Wide range DDR Timing Control
• Superfine adjustment for DDR timing
• Wide range of DDR slew rate control
• Slew rate controllable independent of output impedance
• High speed SMBus in test mode
• IBIST IDT PRBS Generator
DESCRIPTION:
The fully buffered dual in-line memory module (FB-DIMM) is the next
generation memory architecture to meet the growing memory requirement of
servers and workstations. The IDT Advanced Memory Buffer (AMB) chip is the
essential building block located on each FB-DIMM. The IDT AMB receives
commands and data from the host controller to control and write/read data to/
from the DRAMs on the DIMM. Commands and write data are sent southbound
from the host controller to AMBs in a daisy chain fashion and interpreted by the
target AMB. Status and read data are sent northbound from AMBs to the host
controller also in a daisy chain fashion, passing through non-target AMBs. This
unique channel structure alleviates buffer loading issues common in registered
DIMM technology, enabling designers to use a large number of DIMMs within
a single system.
IDTAMB0480complieswiththelatest JEDECdefinedFB-DIMMArchitecture
and Protocol Specification and supports DDR2-533 and DDR2-667 DRAM.
It also enables serial data transfer at 3.2 and 4.0Gbps. The IDTAMB0480
supportsservers,workstations,storagedevicesandcommunicationapplications
that support the next generation FB-DIMM architecture.
FDB MEMORY CHANNEL
Host
Memory
Controller
14
10
DDR2
DDR2
DDR2
DDR2
IDT
AMB
DDR2
DDR2
DDR2
DDR2
DDR2
DDR2
DDR2
DDR2
IDT
AMB
DDR2
DDR2
DDR2
DDR2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
c 2006 Integrated Device Technology, Inc.
1
DDR2
DDR2
DDR2
DDR2
IDT
AMB
DDR2
DDR2
DDR2
DDR2
Up to 8 modules
DDR2
DDR2
DDR2
DDR2
IDT
AMB
DDR2
DDR2
DDR2
DDR2
APRIL 2006
DSC - 7042/2

PagesPages 15
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