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參數資料
| 型號： | W3EG7266S265BD4 |
| 英文描述： | 512MB - 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL |
| 中文描述： | 512MB的- 64Mx72 DDR SDRAM的無緩沖ECC瓦特/鎖相環(huán) |
| 文件頁數： | 8/13頁 |
| 文件大小： | 203K |
| 代理商： | W3EG7266S265BD4 |
W3EG7266S-AD4
-BD4
8
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
October 2004
Rev. 7
PRELIMINARY
DDR SDRAM COMPONENT ELECTRICAL CHARACTERISTICS AND RECOMMENDED
AC OPERATING CONDITIONS
(Continued)
DDR400: V
CC
= V
CCQ
= +2.6V ± 0.1V
AC CHARACTERISTICS
403
PARAMETER
SYMBOL MIN
DQS write postamble
t
WPST
0.4
Write recovery time
t
WR
15
Internal WRITE to READ command delay
t
WTR
2
Data valid output window
na
t
QH
- t
DQSQ
REFRESH to REFRESH command interval
t
REFC
Average periodic refresh interval
t
REFI
Terminating voltage delay to V
CC
t
VTD
0
Exit SELF REFRESH to non-READ command
t
XSNR
75
Exit SELF REFRESH to READ command
t
XSRD
200
355
262
265
202
MAX
0.6
MIN
0.4
15
1
t
QH
- t
DQSQ
MAX
0.6
MIN
0.4
15
1
t
QH
- t
DQSQ
MAX
0.6
MIN
0.4
15
1
MAX
0.6
MIN
0.4
15
1
MAX UNITS NOTES
0.6
t
CK
ns
t
CK
ns
70.3
μs
7.8
μs
ns
ns
t
CK
17
tQH - tDQSQ
tQH - tDQSQ
22
21
21
70.3
7.8
70.3
7.8
70.3
7.8
70.3
7.8
0
0
0
0
75
200
75
200
75
200
80
200
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W3EG7266S265BD4I | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL |
| W3EG7266S265D3 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM REGISTERED w/PLL |
| W3EG7266S335AD4 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL |
| W3EG7266S335AD4I | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL |
| W3EG7266S335BD4 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512MB - 64Mx72 DDR SDRAM UNBUFFERED ECC w/PLL |
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