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White Electronic Designs - 4GB - 2x256Mx72 DDR2 SDRAM RDIM

Numéro de référence WV3HG2256M72AER-D6
Description 4GB - 2x256Mx72 DDR2 SDRAM RDIM
Fabricant White Electronic Designs 
Logo White Electronic Designs 





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WV3HG2256M72AER-D6 fiche technique
White Electronic Designs WV3HG2256M72AER-D6
ADVANCED*
4GB – 2x256Mx72 DDR2 SDRAM RDIMM, w/PLL
FEATURES
240-pin, dual in-line memory module (DIMM)
Fast data transfer rates: PC2-6400*, PC2-5300*,
PC2-4300 and PC2-3200
Support ECC error detection and correction
VCC = VCCQ = 1.8V± 0.1V
VCCSPD = +1.7V to +3.6V
JEDEC standard 1.8V I/O (SSTL_18-compatible)
Differential data strobe (DQS, DQS#) option
Four-bit prefetch architecture
DLL to align DQ and DQS transitions with CK
Multiple internal device banks for concurrent
operation
Supports duplicate output strobe (RDQS/RDQS#)
Programmable CAS# latency (CL): 3, 4, 5* and 6*
Adjustable data-output drive strength
On-die termination (ODT)
Serial Presence Detect (SPD) with EEPROM
Auto & self refresh: 64ms 8,192 cycle refresh
Gold edge contacts
RoHS compliant
wwwD.Duaatal SRhaenekt4U.com
Package option
• 240 Pin DIMM
• PCB –30.00mm (1.181") TYP
DESCRIPTION
The WV3HG2256M72AER is a 2x256Mx72 Double Data
Rate DDR2 SDRAM high density module based on 1Gb
DDR2 SDRAM components. This memory module consists
of eighteen stacks of 256Mx4 bit with 8 banks DDR2
Synchronous DRAMs in FBGA packages, two - 14 bit
registered buffers in BGA packages mounted on a 240-pin
DIMM FR4 substrate.
* This product is under development, is not qualified or characterized and is subject to
change without notice.
NOTE: Consult factory for availability of:
• Vendor source control options
• Industrial temperature option
Clock Speed
CL-tRCD-tRP
* Consult factory for availability
PC2-3200
200MHz
3-3-3
OPERATING FREQUENCIES
PC2-4300
266MHz
4-4-4
PC2-5300*
333MHz
5-5-5
PC2-6400*
400MHz
6-6-6
April 2006
Rev. 1
1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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