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參數資料
| 型號： | W3E232M16S-250STIG |
| 英文描述： | 2x32Mx16bit DDR SDRAM |
| 中文描述： | 2x32Mx16bit DDR內存 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 853K |
| 代理商： | W3E232M16S-250STIG |
W3E232M16S-XSTX
1
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
December 2005
Rev. 1
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
PRELIMINARY*
2x32Mx16bit DDR SDRAM
FEATURES
Double-data-rate architecture; two data transfers
per clock cycle
Data rate = 200, 266, 333, 400 Mbs
Package:
66pin TSOP II package
2.5V ±0.2V core power supply
2.5V I/O (SSTL_2 compatible)
Differential clock inputs(CK and CK#)
DLL aligns DQ and DQS transition with CK
MRS cycle with address key programs
Read latency : 2, 2.5 , 3 (Clock)
Burst length (2, 4, or 8)
Burst type (sequential & interleave)
Auto & Self refresh Modes
RoHS Compliant
Commands entered on each positive CK edge
Internal pipelined double-data-rate (DDR)
ar chi ec ure; two data accesses per clock cy cle
Bidirectional data strobe (DQS) transmitted/
re ceived with data, i.e., source-syn chro nous data
capture (one per byte)
DQS edge-aligned with data for READs; center-
aligned with data for WRITEs
Four internal banks for concurrent operation
Data mask (DM) pins for masking write data
(one per byte)
Programmable IOL/IOH option
Auto precharge option
Auto Refresh and Self Refresh Modes
Commercial, and Industrial Temperature Rang es
Organized as 2X32M x 16
* This product is under development, is not qualified +and is subject to change
without notice.
OPERATING FREQUENCIES
DDR333
133MHz
166MHz
—
DDR400
—
166MHz
200MHz
DDR266
133MHz
133MHz
—
DDR200
100MHz
133MHz
—
Speed @CL2
Speed @CL2.5
Speed @CL3
* CL = CAS Latency
32Mx16
CK, CK#, CAS, LDM, UDM
RAS#, WE#, UDQS, LDQS
CS0#, CKE0
CS1#, CKE1
I/O0 ~ I/O15
A0-A12, BA0, BA1
32Mx16
FUNCTIONAL BLOCK DIAGRAM
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| W3E32M64S-200BI | 32Mx64 DDR SDRAM |
| W3E32M64S-200BM | 32Mx64 DDR SDRAM |
| W3E32M64S-250BC | 32Mx64 DDR SDRAM |
| W3E32M64S-250BI | 32Mx64 DDR SDRAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W3E232M16S-266STC | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2x32Mx16bit DDR SDRAM |
| W3E232M16S-266STCG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2x32Mx16bit DDR SDRAM |
| W3E232M16S-266STI | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2x32Mx16bit DDR SDRAM |
| W3E232M16S-266STIG | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2x32Mx16bit DDR SDRAM |
| W3E232M16S-400STC | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2x32Mx16bit DDR SDRAM |
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