參數(shù)資料
型號(hào): M2S56D30AKT-75
廠商: ELPIDA MEMORY INC
元件分類: DRAM
英文描述: 32M X 8 DDR DRAM, 0.75 ns, PDSO64
封裝: 0.40 MM PITCH, STSOP-64
文件頁(yè)數(shù): 5/41頁(yè)
文件大小: 638K
代理商: M2S56D30AKT-75
13
DDR SDRAM
E0338M10 (Ver.1.0)
(Previous Rev.1.54E)
Jan. '03 CP(K)
M2S56D20/ 30/ 40ATP
256M Double Data Rate Synchronous DRAM
M2S56D20/ 30/ 40AKT
FUNCTION TRUTH TABLE for CKE
ABBREVIATIONS:
H=High Level, L=Low Level, X=Don't Care
NOTES:
1. Low to High transition of CKE re-enable CLK and other inputs asynchronously.
A minimum setup time must be satisfied before any command except REFSX.
2. Power-Down and Self-Refresh can be entered only from the All Banks Idle State.
3. Must be legal command.
Current State CKE n-1 CKE n
/CS
/RAS
/CAS
/WE
Address
Action
Notes
H
X
XX
X
INVALID
1
L
H
X
Exit Self-Refresh (Idle after tRFC)
1
L
H
L
H
X
Exit Self-Refresh (Idle after tRFC)
1
L
H
L
H
L
X
ILLEGAL
1
L
H
LH
LX
X
ILLEGAL
1
L
H
L
X
ILLEGAL
1
L
X
NOP (Maintain Self-Refresh)
1
H
X
XX
X
INVALID
L
H
X
Exit Power Down to Idle
L
XX
X
NOP (Maintain Power Down)
H
X
Refer to Function Truth Table
2
H
L
H
X
Enter Self-Refresh
2
H
L
H
X
Enter Power Down
2
H
L
H
X
Enter Power Down
2
H
L
H
L
X
ILLEGAL
2
H
L
LH
LX
X
ILLEGAL
2
H
L
X
ILLEGAL
2
L
X
XX
X
Refer to Current State =Power
Down
2
H
X
Refer to Function Truth Table
H
L
XX
X
Begin CLK Suspend at Next
Cycle
3
L
H
X
Exit CLK Suspend at Next Cycle
3
L
X
Maintain CLK Suspend
ANY STATE
other than
listed above
SELF-
REFRESHING
POWER
DOWN
ALL BANKS
IDLE
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