MH64S72QJA-6 Ver la hoja de datos (PDF) - MITSUBISHI ELECTRIC
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MH64S72QJA-6
MITSUBISHI ELECTRIC
MH64S72QJA-6 Datasheet PDF : 56 Pages
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MITSUBISHI LSIs
MH64S72QJA -6
4,831,838,208-BIT ( 64,108,864-WORD BY 72-BIT ) Synchronous DYNAMIC RAM
FUNCTION TRUTH TABLE FOR CKE
Current State
CK
n-1
CK
n
SELF -
HX
REFRESH*1 L H
LH
LH
LH
LH
POWER
DOWN
L
L
HX
LH
L
L
ALL BANKS H H
IDLE*2
HL
HL
HL
HL
HL
HL
L
X
ANY STATE H H
other than
HL
listed above L
H
L
L
/S /RAS /CAS /WE Add
Action
X
X
X
X
X INVALID
H
X
X
X
X Exit Self-Refresh(Idle after tRC)
L
H
H
H
X Exit Self-Refresh(Idle after tRC)
L
H
H
L
X ILLEGAL
L
H
L
X
X ILLEGAL
L
L
X
X
X ILLEGAL
X
X
X
X
X NOP(Maintain Self-Refresh)
X
X
X
X
X INVALID
X
X
X
X
X Exit Power Down to Idle
X
X
X
X
X NOP(Maintain Self-Refresh)
X
X
X
X
X Refer to Function Truth Table
L
L
L
H
X Enter Self-Refresh
H
X
X
X
X Enter Power Down
L
H
H
H
X Enter Power Down
L
H
H
L
X ILLEGAL
L
H
L
X
X ILLEGAL
L
L
X
X
X ILLEGAL
X
X
X
X
X Refer to Current State = Power Down
X
X
X
X
X Refer to Function Truth Table
X
X
X
X
X Begin CK0 Suspend at Next Cycle*3
X
X
X
X
X Exit CK0 Suspend at Next Cycle*3
X
X
X
X
X Maintain CK0 Suspend
ABBREVIATIONS:
H = High Level, L = Low Level, X = Don't Care
NOTES:
1. CKE Low to High trans ition will re-enable CK and other inputs asynchronously.
A m inimum setup time must be satisfied before any command other than EXIT.
2. Power-Down and Self-Refresh can be entered only form the All banks idle State.
3. Must be legal command.
MIT-DS-334-0.0
MITSUBISHI
ELECTRIC
17/Jun. /1999 11
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