is42sm16800g-6bli Integrated Silicon Solution, Inc., is42sm16800g-6bli Datasheet - Page 15

• Manufacturer Part Number: is42sm16800g-6bli
• Description: 2m X 16bits X 4banks Mobile Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

Table5: Function Truth Table
Rev. 00A | Dec. 2010
Recovering
Refreshing
Precharge
Accessing
Current
Register
State
Mode
Write
Auto
with
/CS
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
/RAS
H
H
H
H
H
H
H
H
H
L
L
L
L
X
L
L
L
L
X
L
L
L
L
X
/CAS
H
H
H
X
H
H
H
X
H
H
H
X
L
L
L
L
L
L
L
L
L
L
L
L
/WE
H
H
H
H
X
H
H
H
H
X
H
H
H
H
X
L
L
L
L
L
L
L
L
L
www.issi.com
Command
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
X
X
X
X
X
X
X
X
X
OP CODE
OP CODE
OP CODE
Col Add./ A10
Col Add./ A10
Col Add./A10
Col Add./A10
Col Add./A10
Col Add./A10
Row Add.
Row Add.
Row Add.
A0-A11
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X
X
X
X
X
X
X
X
X
X
X
X
Mode Register Set
Auto or Self Refresh
Precharge
Bank Activate
Write/WriteAP
Read/ReadAP
No Operation
Device Deselect
Mode Register Set
Auto or Self Refresh
Precharge
Bank Activate
Write/Write AP
Read/Read AP
No Operation
Device Deselect
Mode Register Set
Auto or Self Refresh
Precharge
Bank Activate
Write/WriteAP
Read/Read AP
No Operation
Device Deselect
Description
IS42SM/RM/VM16800G
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
No Operation :
Precharge after tDPL
No Operation :
Precharge after tDPL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
No Operation : Idle
after tRC
No Operation : Idle
after tRC
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
No Operation : Idle
after 2 Clock Cycle
No Operation : Idle
after 2 Clock Cycle
Advanced Information
Action
4,9,12
13,14
13,14
13,14
Note
4,13
4,12
4,12
13
13
13
13
13
13
13
13
13
13
13
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