is42sm16200c Integrated Silicon Solution, Inc., is42sm16200c Datasheet - Page 17

• Manufacturer Part Number: is42sm16200c
• Description: 1m X 16bits X 2banks Low Power Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

Rev. 00A | July 2010
Table6: CKE Truth Table
Current
Current
Refresh
Refresh
State
Power
Power
All
Banks
Idle
Any
State
other
than
listed
listed
above
Down
Down
Deep
Self
Cycle
Prev
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
L
L
L
L
CKE
Current
Cycle
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
X
L
X
L
X
L
L
L
L
L
L
X
L
L
/CS
H
H
H
H
X
L
L
L
L
X
X
L
L
X
X
X
X
L
L
L
L
L
L
L
L
X
X
X
X
X
X
/RAS
X
X
H
H
H
X
X
X
H
X
X
X
X
X
X
X
H
X
H
X
X
X
X
X
X
L
L
L
L
L
L
L
L
www.issi.com
/CAS
H
H
H
H
H
X
X
L
X
X
X
X
X
L
X
X
X
X
X
X
X
L
L
X
X
L
L
X
X
X
X
X
X
Command
/WE
- [e-mail]
H
H
H
H
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
L
L
L
L
BA
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
A0-A10
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
INVALID
Exit Self Refresh with Device
Deselect
Exit Self Refresh with No
Operation
ILLEGAL
ILLEGAL
ILLEGAL
Maintain Self Refresh
INVALID
Power Down Mode Exit, All
Banks Idle
Banks Idle
ILLEGAL
Maintain Power Down Mode
INVALID
Deep Power Down Mode Exit
Maintain Deep Power Down
Mode
Refer to the Idle State
section of the Current State
Truth Table
Auto Refresh
Mode Register Set
Refer to the Idle State
section of the Current State
Truth Table
Entry Self Refresh
Mode Register Set
Power Down
Refer to Operations of the
Current State Truth Table
Begin Clock Suspend next
cycle
Exit Clock Suspend next
Exit Clock Suspend next
cycle
Maintain Clock Suspend
IS42SM/RM/VM16200C
A i
Action
Advanced Information
N
Note
2
3
3
3
3
3
2
3
3
3
2
6
4
4
4
5
4
4
4
5
5
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