k4x56163pe-lg Samsung Semiconductor, Inc., k4x56163pe-lg Datasheet - Page 29

• Manufacturer Part Number: k4x56163pe-lg
• Description: 16m X16 Mobile Ddr Sdram
• Manufacturer: Samsung Semiconductor, Inc.

Functional truth table
ABBREVIATIONS :
H=High Level, L=Low level, X=Don t Care
Note :
K4X56163PE-L(F)G
REFRESHING
Current State
ALL BANKS
ANY STATE
listed above
other than
POWER
DOWN
IDLE
SELF-
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
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.
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 "3.3.10 Read with Auto Precharge" for detailed information.
7. Refer to "3.3.11 Write with Auto Precharge" for detailed information.
command other than EXIT.
*9
*8
CKE
n-1
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
CKE
H
H
H
H
H
H
H
H
n
L
L
L
L
L
L
L
L
X
CS
H
X
X
X
X
H
X
X
L
L
L
L
L
L
L
L
L
RAS
X
H
H
H
X
X
X
X
X
H
H
H
X
X
L
L
L
CAS
H
H
H
H
X
L
X
X
X
X
X
L
X
L
X
X
X
WE
X
H
X
X
X
X
X
X
H
X
H
X
X
X
X
L
L
29
Add
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Exit Self-Refresh
Exit Self-Refresh
ILLEGAL
ILLEGAL
ILLEGAL
NOPeration(Maintain Self-Refresh)
Exit Power Down(Idle after tPDEX)
NOPeration(Maintain Power Down)
Refer to Function True Table
Enter Self-Refresh
Enter Power Down
Enter Power Down
ILLEGAL
ILLEGAL
ILLEGAL
Refer to Current State=Power Down
Refer to Function Truth Table
Mobile-DDR SDRAM
Action
March 2004