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參數(shù)資料
| 型號(hào)： | EM48AM3244VBA-7FE |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 256Mb (2Mⅴ4Bankⅴ32) Synchronous DRAM |
| 中文描述： | 256Mb的（200萬(wàn)ⅴ4Bankⅴ32）同步DRAM |
| 文件頁(yè)數(shù)： | 16/17頁(yè) |
| 文件大?。?/td> | 208K |
| 代理商： | EM48AM3244VBA-7FE |
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eorex
EM488M3244VBA
Jul. 2006
www.eorex.com
16/17
5. Command Truth Table for CKE
CKE
n-1
Current State
n
/CS /R /C /W
Addr.
Action
H
X
X
X
X
X
X
INVALID, CLK(n-1) would exit self
refresh
Self refresh recovery
Self refresh recovery
ILLEGAL
ILLEGAL
Maintain self refresh
Idle after t
RC
Idle after t
RC
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
INVALID, CLK(n-1) would exit
power down
Exit power down
→
Idle
Maintain power down mode
L
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
L
L
L
L
H
L
L
L
X
H
L
L
L
H
L
L
L
X
H
H
L
X
X
H
H
L
X
H
H
L
X
H
L
X
X
X
H
L
X
X
H
L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Self Refresh
Self Refresh
Recovery
H
X
X
X
X
X
X
L
L
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
L
L
L
L
L
X
X
H
L
L
L
L
H
L
L
L
X
X
X
H
L
L
L
X
H
L
L
X
X
X
X
H
L
L
X
X
H
L
X
X
X
X
X
H
L
X
X
X
H
X
X
X
Power Down
Refer to operations in Operative
Command Table
Refresh
Op-Code
X
Refer to operations in Operative
Command Table
Self refresh
(Note 17)
Refer to operations in Operative
Command Table
Power down
(Note 17)
Refer to operations in Operative
Command Table
Power down
(Note 17)
Refer to operations in Operative
Command Table
Begin clock suspend next cycle
(Note 18)
Exit clock suspend next cycle
Maintain clock suspend
H
L
L
L
L
Op-Code
Both Banks
Idle
L
X
X
X
X
X
X
H
X
X
X
X
X
X
Row Active
L
X
X
X
X
X
X
H
H
X
X
X
X
H
L
X
X
X
X
X
L
L
H
L
X
X
X
X
X
X
X
X
X
X
Any State Other
than Listed above
Remark:
H = High level, L = Low level, X = High or Low level (Don't care)
Notes 17:
Self refresh can be entered only from the both banks idle state.
Power down can be entered only from both banks idle or row active state.
Notes 18:
Must be legal command as defined in Operative Command Table
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM48AM3244VBA-8FE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:256Mb (2M′4Bank′32) Synchronous DRAM |
| EM48AM3244VBB-75FE | 制造商:EOREX 制造商全稱:EOREX 功能描述:256Mb (2M】4Bank】32) Synchronous DRAM |
| EM48AM3244VBB-7FE | 制造商:EOREX 制造商全稱:EOREX 功能描述:256Mb (2M】4Bank】32) Synchronous DRAM |
| EM48AM3244VBB-8FE | 制造商:EOREX 制造商全稱:EOREX 功能描述:256Mb (2M】4Bank】32) Synchronous DRAM |
| EM48AM3244VBC-75FE | 制造商:EOREX 制造商全稱:EOREX 功能描述:256Mb (2M】4Bank】32) Synchronous DRAM |
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