32Mx64 DDR SDRAM UNBUFFERED
White Electronic Designs
256MB – 32Mx64 DDR SDRAM UNBUFFERED
FEATURES
DDR200, DDR266 and DDR333 • JEDEC design specificat...
Description
White Electronic Designs
256MB – 32Mx64 DDR SDRAM UNBUFFERED
FEATURES
DDR200, DDR266 and DDR333 JEDEC design specifications Double-data-rate architecture Industrial temperature 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 Industrial temperature options
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W3EG6432S-D4
PRELIMINARY*
DESCRIPTION
The W3EG6432S is a 32Mx64 Double Data Rate SDRAM memory module based on 256Mb DDR SDRAM components. The module consists of eight 32Mx8 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.
Standard 200 pin SO-DIMM package Package height option: D4: 31.75mm (1.25")
NOTE: Consult factory for availability of: Lead-free products Vendor source control option Industrial temperature option
OPERATING FREQUENCIES
DDR333 @CL=2.5 Clock Speed CL-tRCD-tRP 166MHz 2.5-3-3 DDR266 @CL=2 133MHz 2-2-2 DDR266 @CL=2.5 133MHz 2.5-...
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