W3EG7266S-D3 Datasheet, PDF (1/12 Pages) White Electronic Designs Corporation – 512MB - 64Mx72 DDR SDRAM REGISTERED w/PLL

White Electronic Designs
W3EG7266S-D3
PRELIMINARY*
512MB – 64Mx72 DDR SDRAM REGISTERED w/PLL
FEATURES
Double-data-rate architecture
Clock speeds of 100MHz and 133MHz
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: 2.5V ± 0.20V
Standard 184 pin DIMM package
• D3 = 26.67mm (1.05")
DESCRIPTION
The W3EG7266S is a 64Mx72 Double Data Rate
SDRAM memory module based on 512Mb DDR SDRAM
component. The module consists of nine 64Mx8 DDR
SDRAMs in 66 pin TSOP package mounted on a 184 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 Lenths 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.
NOTE: Consult factory for availability of:
• RoHS compliant products
• Vendor source control options
• Industrial temperature option
Clock Speed
CL-tRCD-tRP
OPERATING FREQUENCIES
DDR266 @CL=2
133MHz
2-2-2
DDR266 @CL=2.5
133MHz
2.5-3-3
DDR200 @CL=2
100MHz
2-2-2
October 2005
Rev. 3
1
White Electronic Designs Corporation • [phone] • www.wedc.com