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W3EG6464S-AD4 Datasheet, PDF (1/9 Pages) White Electronic Designs Corporation – 512MB - 64Mx64 DDR SDRAM UNBUFFERED w/PLL
White Electronic Designs
W3EG6464S-AD4
-BD4
PRELIMINARY*
512MB - 64Mx64 DDR SDRAM UNBUFFERED w/PLL
FEATURES
Double-data-rate architecture
Speeds of 100MHz, 133MHz and 166MHz
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: VCC: 2.5V ± 0.2V
JEDEC standard 200 pin SO-DIMM package
• Package height options:
AD4: 35.5 mm (1.38"),
BD4: 31.75 (1.25")
DESCRIPTION
The W3EG6464S is a 64Mx64 Double Data Rate
SDRAM memory module based on 512Mb DDR SDRAM
component. The module consists of eight 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.
* This product is under development, is not qualified or characterized and is subject to
change without notice.
Clock Speed
CL-tRCD-tRP
OPERATING FREQUENCIES
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
March 2004
Rev. 1
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com