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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)： | 12/17頁(yè) |
| 文件大?。?/td> | 208K |
| 代理商： | EM48AM3244VBA-7FE |
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eorex
EM488M3244VBA
Jul. 2006
www.eorex.com
12/17
2. DQM Truth Table
CKE
Command
Symbol
n-1
n
/CS
Data Write/Output Enable
Data Mask/Output Disable
ENB
MASK
H
H
X
X
H
L
Upper Byte Write Enable/Output Enable
Read
Read with Auto Pre-charge
Write
Write with Auto Pre-charge
Bank Activate
Pre-charge Select Bank
Pre-charge All Banks
Mode Register Set
H = High level, L = Low level, X = High or Low level (Don't care), V = Valid data input
BSTH
READ
READA
WRIT
WRITA
ACT
PRE
PALL
MRS
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
X
L
L
L
L
L
L
L
L
L
3. CKE Truth Table
CKE
n-1
H
L
Item
Command
Symbol
n
L
L
/CS /RAS /CAS /WE
Addr.
Activating
Any
Clock
Suspend
Idle
Idle
Clock Suspend Mode Entry
Clock Suspend Mode
X
X
X
X
X
X
X
X
X
X
Clock Suspend Mode Exit
L
H
X
X
X
X
X
CBR Refresh Command
Self Refresh Entry
REF
SELF
H
H
L
H
L
H
H
L
H
L
L
L
H
X
X
L
L
H
X
X
X
L
L
H
X
X
X
H
H
H
X
X
X
X
X
X
X
X
X
Self Refresh
Self Refresh Exit
L
H
L
Idle
Power Down
Remark
H = High level, L = Low level, X = High or Low level (Don't care)
Power Down Entry
Power Down Exit
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 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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