is42s16128 Integrated Silicon Solution, Inc., is42s16128 Datasheet - Page 16

• Manufacturer Part Number: is42s16128
• Description: 128k Words Bits Banks Sdram
• Manufacturer: Integrated Silicon Solution, Inc.

CKE RELATED COMMAND TRUTH TABLE
Notes:
1. H: HIGH level input, L: LOW level input, X: HIGH or LOW level input
2. The CLK pin and the other input are reactivated asynchronously by the transition of the CKE level from LOW to HIGH. The
3. Both banks must be set to the inactive (idle) state in advance to switch to power-down mode or self-refresh mode.
4. The input must be command defined in the operation command table.
16
IS42S16128
Current State
Self-Refresh
Self-Refresh Recovery
Power-Down
Both Banks Idle
Other States
minimum setup time (t
CKA
Operation
Undefined
Self-Refresh Recovery
Self-Refresh Recovery
Illegal
Illegal
Self-Refresh
Idle State After t
Idle State After t
Illegal
Illegal
Power-Down on the Next Cycle
Power-Down on the Next Cycle
Illegal
Illegal
Clock Suspend Termination on the Next Cycle
Clock Suspend
Undefined
Power-Down Mode Termination, Idle After
That Termination
Power-Down Mode
No Operation
See the Operation Command Table
Bank Active Or Precharge
Auto-Refresh
Mode Register Set
See the Operation Command Table
See the Operation Command Table
See the Operation Command Table
Self-Refresh
See the Operation Command Table
Power-Down Mode
See the Operation Command Table
Clock Suspend on the Next Cycle
Clock Suspend Termination on the Next Cycle
Clock Suspend Termination on the Next Cycle
) required before all commands other than mode termination must be satisfied.
(2)
(2)
(3)
RC
RC
(2)
Has Elapsed
Has Elapsed
(3)
(2)
(2)
(4)
(1)
(2)
Integrated Silicon Solution, Inc. — 1-800-379-4774
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
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
n
X
L
L
L
L
L
L
X
L
L
L
L
L
L
X
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 CAS WE
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
X
X
H
X
X
X
H
X
X
H
X
X
X
X
X
X
X
X
H
X
X
H
X
X
X
X
X
L
L
L
L
L
L
L
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
A9
ISSI
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
X
X
X
X
X
X
X
OP CODE
OP CODE
A8 A7-A0
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
X
X
X
X
X
X
X
03/13/00
Rev. A
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
X
X
X
X
X
X
X
®