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參數(shù)資料
| 型號： | WED9LC6816V1610BI |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | 存儲器 |
| 英文描述： | SPECIALTY MEMORY CIRCUIT, PBGA153 |
| 封裝： | 14 X 22 MM, MO-163, BGA-153 |
| 文件頁數(shù)： | 17/26頁 |
| 文件大?。?/td> | 324K |
| 代理商： | WED9LC6816V1610BI |
WED9LC6816V
24
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
September, 2003
Rev. 1
White Electronic Designs Corp. reserves the right to change products or specications without notice.
FIG. 16
SDRAM MODE REGISTER
SET CYLE
SDRAS#
SDCAS#
ADDR
BWE#
SDCK
SDCE#
Ra
Key
DQ
New Command
New
Command
Auto Refresh
MRS
SDWE#
DON'T CARE
tRFC
HI-Z
Note 2
Note 1
Note 3
HIGH
012
34
567
8
0
1
2
3
4
5
6
7
8
9
10
*Both banks precharge should be completed before Mode Register Set cycle and Auto refresh cycle.
NOTES:
MODE REGISTER SET CYCLE
1. SDCE#, SDRAS#, SDCAS# & SDWE# activation at the same clock cycle with address key will set internal mode register.
2. Minimum 2 clock cycles should be met before new SDRAS# activation.
3. Please refer to Mode Register Set Table.
SDRAM AUTO REFRESH CYCLE
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