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KM416L8031BT-GL0 View Datasheet(PDF) - Samsung

Part NameDescriptionManufacturer
KM416L8031BT-GL0 128Mb DDR SDRAM Samsung
Samsung Samsung
KM416L8031BT-GL0 Datasheet PDF : 53 Pages
First Prev 31 32 33 34 35 36 37 38 39 40 Next Last
128Mb DDR SDRAM
Current State
CKE CKE
n-1 n
CS
RAS CAS
WE
Add
Action
SELF-
L
H
H
X
X
XX
Exit Self-Refresh
REFRESHING*8
L
H
L
H
H
HX
Exit Self-Refresh
L
H
L
H
H
LX
ILLEGAL
L
H
L
H
L
XX
ILLEGAL
L
H
L
L
X
XX
ILLEGAL
L
L
X
X
X
XX
NOPeration(Maintain Self-Refresh)
POWER
DOWN
L
H
X
X
X
XX
Exit Power Down(Idle after tPDEX)
L
L
X
X
X
XX
NOPeration(Maintain Power Down)
ALL BANKS
IDLE*9
H
H
X
X
X
XX
Refer to Function True Table
H
L
L
L
L
HX
Enter Self-Refresh
H
L
H
X
X
XX
Enter Power Down
H
L
L
H
H
HX
Enter Power Down
H
L
L
H
H
LX
ILLEGAL
H
L
L
H
L
XX
ILLEGAL
H
L
L
L
X
XX
ILLEGAL
L
X
X
X
X
XX
Refer to Current State=Power Down
ANY STATE
other than
listed above
H
H
X
X
X
XX
Refer to Function Truth Table
Table 9-5. Functional truth table
ABBREVIATIONS :
H=High Level, L=Low level, X=Dont Care
Note :
1. All entries assume that CKE was High during the preceding clock cycle and the current clock cycle.
2. ILLEGAL to bank in specified state ; function may be legal in the bank indicated by BA, depending on the state of that bank.
3. Must satisfy bus contention, bus turn around and write recovery requirements.
4. NOP to bank precharging or in idle sate. May precharge bank indicated by BA.
5. ILLEGAL if any bank is not idle.
6. Refer to "3.3.11 Read with Auto Precharge" in page 29 for detailed information.
7. Refer to "3.3.12 Write with Auto Precharge" in page 30 for detailed information.
8. CKE Low to High transition will re-enable CK, CK and other inputs asynchronously. A minimum setup time must be satisfied
before issuing any command other than EXIT.
9. Power-Down and Self-Refresh can be entered only from All Bank Idle state.
ILLEGAL = Device operation and/or data integrity are not guaranteed.
- 38 -
REV. 1.0 November. 2. 2000
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