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W3EG7266S262BD4G

Description
DDR DRAM Module, 64MX72, 0.75ns, CMOS, ROHS COMPLIANT, SO-DIMM-200
Categorystorage    storage   
File Size191KB,13 Pages
ManufacturerWhite Electronic Designs Corporation
Websitehttp://www.wedc.com/
Environmental Compliance
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W3EG7266S262BD4G Overview

DDR DRAM Module, 64MX72, 0.75ns, CMOS, ROHS COMPLIANT, SO-DIMM-200

W3EG7266S262BD4G Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerWhite Electronic Designs Corporation
package instructionDIMM,
Reach Compliance Codeunknown
access modeFOUR BANK PAGE BURST
Maximum access time0.75 ns
Other featuresAUTO/SELF REFRESH
JESD-30 codeR-XDMA-N200
memory density4831838208 bit
Memory IC TypeDDR DRAM MODULE
memory width72
Number of functions1
Number of ports1
Number of terminals200
word count67108864 words
character code64000000
Operating modeSYNCHRONOUS
Maximum operating temperature70 °C
Minimum operating temperature
organize64MX72
Package body materialUNSPECIFIED
encapsulated codeDIMM
Package shapeRECTANGULAR
Package formMICROELECTRONIC ASSEMBLY
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
self refreshYES
Maximum supply voltage (Vsup)2.7 V
Minimum supply voltage (Vsup)2.3 V
Nominal supply voltage (Vsup)2.5 V
surface mountNO
technologyCMOS
Temperature levelCOMMERCIAL
Terminal formNO LEAD
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
White Electronic Designs
W3EG7266S-AD4
-BD4
PRELIMINARY*
512MB – 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL
FEATURES
Double-data-rate architecture
DDR200, DDR266, DDR300 and DDR400
• JEDEC design specifications
Bi-directional data strobes (DQS)
Differential clock inputs (CK & CK#)
Programmable Read Latency 2,2.5 (clock)
Programmable Burst Length (2,4,8)
Programmable Burst type (sequential & interleave)
Edge aligned data output, center aligned data input
Auto and self refresh
Serial presence detect
Power supply:
• V
CC
= V
CCQ
= +2.5V ± 0.2V (100, 133 and
166MHz)
• V
CC
= V
CCQ
= +2.6V ± 0.1V (200MHz)
JEDEC standard 200 pin SO-DIMM package
• Package height options:
AD4: 35.05 mm (1.38”)
BD4: 31.75 mm (1.25”)
NOTE: Consult factory for availability of:
• Lead-Free Products
• Vendor source control options
• Industrial temperature options
* This data sheet describes a product that is not fully qualified or characterized and is
subject to change without notice.
DESCRIPTION
The W3EG7266S is a 64Mx72 Double Data Rate
SDRAM memory module based on 512Mb DDR SDRAM
components. The module consists of nine 64Mx8 DDR
SDRAMs in 66 pin TSOP packages mounted on a 200
pin FR4 substrate.
Synchronous design allows precise cycle control with the
use of system clock. Data I/O transactions are possible
on both edges and Burst Lengths allow the same device to
be useful for a variety of high bandwidth, high performance
memory system applications.
OPERATING FREQUENCIES
DDR400@CL=3
Clock Speed
CL-t
RCD
-t
RP
200MHz
3-3-3
DDR333@CL=2.5
166MHz
2.5-3-3
DDR266@CL=2
133MHz
2-2-2
DDR266@CL=2.5
133MHz
2.5-3-3
DDR200@CL=2
100MHz
2-2-2
October 2004
Rev. 7
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com

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