W3EG7217S-D3 Datasheet, PDF (1/12 Pages) White Electronic Designs Corporation – 128MB - 16Mx72 DDR SDRAM REGISTERED, ECC w/PLL

White Electronic Designs
W3EG7217S-D3
128MB - 16Mx72 DDR SDRAM REGISTERED, ECC w/PLL
FEATURES
Double-data-rate architecture
DDR200 and DDR266
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
184 pin DIMM package
• D3 = 26.67 (1.05")
DESCRIPTION
The W3EG7217S is a 16Mx72 Double Data Rate
SDRAM memory module based on 128Mb DDR SDRAM
component. The module consists of nine 16Mx8 DDR
SDRAMs in 66 pin TSOP packages 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 lengths allow the same device to be
useful for a variety of high bandwidth, high performance
memory system applications.
* This product is subject to change without notice.
Note: Consult factory for availability of lead-free products (F = Lead-Free, G = RoHS
compliant)
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
December 2004
Rev. 1
1
White Electronic Designs Corporation • [phone] • www.wedc.com