is42s32800g-7bli Integrated Silicon Solution, Inc., is42s32800g-7bli Datasheet - Page 11

• Manufacturer Part Number: is42s32800g-7bli
• Description: 8m X 32 256mb Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S32800G, IS45S32800G
Integrated Silicon Solution, Inc. - www.issi.com
Rev. 00A
07/12/2010
CKE RELATED COMMAND TRUTH TABLE
Current State
Self-Refresh (S.R.)
Self-Refresh Recovery Idle After t
Power-Down (P.D.)
Both Banks Idle
Any state
other than
listed above
Notes:
1. H : High level, L : low level, X : High or low level (Don’t care).
2. CKE Low to High transition will re-enable CLK and other inputs asynchronously. A minimum setup
3. Power down and Self refresh can be entered only from the both banks idle state.
4. Must be legal command as defined in Operative Command Table.
5. Illegal if t
time must be satisfied
before any command other than EXIT.
xsr
is not satisfied.
Operation
INVALID, CLK (n - 1) would exit S.R.
Self-Refresh Recovery
Self-Refresh Recovery
Illegal
Illegal
Maintain S.R.
Idle After t
Illegal
Illegal
Begin clock suspend next cycle
Begin clock suspend next cycle
Illegal
Illegal
Exit clock suspend next cycle
Maintain clock suspend
INVALID, CLK (n - 1) would exit P.D.
EXIT P.D. --> Idle
Maintain power down mode
Refer to operations in Operative Command Table
Refer to operations in Operative Command Table
Refer to operations in Operative Command Table
Auto-Refresh
Refer to operations in Operative Command Table
Refer to operations in Operative Command Table
Refer to operations in Operative Command Table
Refer to operations in Operative Command Table
Self-Refresh
Refer to operations in Operative Command Table
Power-Down
Refer to operations in Operative Command Table
Begin clock suspend next cycle
Exit clock suspend next cycle
Maintain clock suspend
rc
rc
(3)
(3)
(2)
(2)
(2)
(2)
(5)
(5)
(4)
(1)
n-1
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
CKE
n
X
H
H
H
H
H
H
H
H
H
X
H
H
H
H
H
H
X
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CS
H
H
H
H
H
X
L
L
L
X
L
L
L
L
L
L
X
X
X
X
X
L
L
L
L
L
L
L
L
X
X
X
X
X
RAS
X
X
H
H
X
X
H
H
X
H
H
X
X
X
X
X
X
H
X
H
X
X
X
X
X
L
L
L
L
L
L
L
L
L
CAS
H
H
H
H
H
X
X
L
X
X
X
L
X
X
L
X
X
X
X
X
X
X
X
L
L
X
X
L
L
X
X
X
X
X
WE
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
H
X
X
X
H
X
X
X
X
X
L
L
Op - Code
Op - Code
Address
—
—
—
—
—
—
—
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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