is43r16160 Integrated Silicon Solution, Inc., is43r16160 Datasheet - Page 11

• Manufacturer Part Number: is43r16160
• Description: 32mx8, 16mx16 256mb Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

DDR SDRAM (Rev.1.1)
IS43R16160
Integrated Silicon Solution, Inc.
Rev. 00A
09/10/08
FUNCTION TRUTH TABLE for CKE
ABBREVIATIONS:
H=High Level, L=Low Level, X=Don't Care
NOTES:
1. CKE Low to High transition will re-enable CLK and other inputs asynchronously.
2. Power-Down and Self-Refresh can be entered only from the All Banks Idle State.
3. Must be legal command.
A minimum setup time must be satisfied before any command other than EXIT.
REFRESHING
other than listed
ALL BANKS
ANY STATE
Current State
POWER
DOWN
SELF-
above
IDLE
CKE n-1
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
Preliminary
Preliminary
CKE n
X
H
H
H
H
H
X
H
H
X
H
H
L
L
L
L
L
L
L
L
L
L
/CS
X
H
X
X
X
X
X
H
X
X
X
X
X
L
L
L
L
L
L
L
L
L
/RAS
X
X
H
H
H
X
X
X
X
X
X
H
H
H
X
X
X
X
X
L
L
L
/CAS
X
X
H
H
X
X
X
X
X
X
X
H
H
X
X
X
X
X
X
L
L
L
/WE
X
X
H
X
X
X
X
X
X
X
H
X
H
X
X
X
X
X
X
X
L
L
256M Double Data Rate Synchronous DRAM
Address
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
INVALID
Exit Self-Refresh (Idle after tRC)
Exit Self-Refresh (Idle after tRC)
ILLEGAL
ILLEGAL
ILLEGAL
NOP (Maintain Self-Refresh)
INVALID
Exit Power Down to Idle
NOP (Maintain Self-Refresh)
Refer to Function Truth Table
Enter Self-Refresh
Enter Power Down
Enter Power Down
ILLEGAL
ILLEGAL
ILLEGAL
Refer to Current State =Power Down
Refer to Function Truth Table
Begin CLK Suspend at Next Cycle
Exit CLK Suspend at Next Cycle
Maintain CLK Suspend
Action
A3S56D30/40ETP
Notes
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
11