参数资料
型号: V58C2256324SAH-40
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 8M X 32 DDR DRAM, 0.6 ns, PBGA144
封装: LEAD FREE, BGA-144
文件页数: 22/37页
文件大小: 557K
代理商: V58C2256324SAH-40
29
V58C2256324SA Rev. 1.0 November 2003
ProMOS TECHNOLOGIES
V58C2256324SA
FUNCTIONTRUTHTABLEforCKE
Note: 1. CKE low-to-high transition re-enablesinputs asynchronously. A minimumsetup timeto CLK must besatisfiedbefore any
commandsotherthanEXITareexecuted.
Note: 2.PowerDowncanbeenteredwhenallbanksareidle(bankscanbeactiveorprecharged)
Note: 3.SelfRefreshcanbeenteredonlyfromthePrecharge/Idlestate.
Abbreviations:
Current
State
CKE
n-1
CKE
n
CS# RAS# CAS#
WE#
Address
Action
Notes
SELF
REFRESH
HX
X
INVALID
1
L
H
X
ExitSelf-Refresh(IdleaftertSRX)1
L
H
L
H
X
ExitSelf-Refresh(IdleaftertSRX)1
L
H
L
H
L
X
ILLEGAL
1
L
H
L
H
X
ILLEGAL
1
L
H
L
X
ILLEGAL
1
L
X
NOP(MaintainSelfRefresh)
1
POWER
DOWN
HX
X
INVALID
L
H
X
ExitPowerDown(IdleaftertPDEX)1
LL
X
NOP(MaintainPowerDown)
ALL
BANKS
IDLE
H
X
RefertoFunctionTruthTable
2
H
L
H
X
EnterSelfRefresh
3
H
L
H
X
EnterPower-Down
2
H
L
H
X
EnterPower-Down
2
H
L
H
L
ILLEGAL
2
H
L
H
L
X
ILLEGAL
2
H
L
X
ILLEGAL
2
L
X
RefertoPowerDowninthistable
Allotherstates
H
X
RefertoFuntionTruthTable
H
HighLevel
L
LowLevel
X
DonítCare
V
ValidDataInput
RA
RowAddress
BA
BankAddress
PA
PrechargeAll
NOP
NoOperation
CA
ColumnAddress
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