is42s16128 Integrated Silicon Solution, Inc., is42s16128 Datasheet - Page 14

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

OPERATION COMMAND TABLE
14
IS42S16128
Current State Command
Write With
Auto-Precharge
Row Precharge DESL
Immediately
Following
Row Active
Write
Recovery
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
Operation
Burst Write Continues, Write Recovery And Precharge H
When Done
Burst Write Continues, Write Recovery And Precharge L
Illegal
Illegal
Illegal
Illegal
Illegal
Illegal
Illegal
No Operation, Idle State After t
No Operation, Idle State After t
No Operation, Idle State After t
Illegal
Illegal
Illegal
No Operation, Idle State After t
Illegal
Illegal
No Operation, Row Active After t
No Operation, Row Active After t
No Operation, Row Active After t
Illegal
Illegal
Illegal
Illegal
Illegal
Illegal
No Operation, Row Active After t
No Operation, Row Active After t
No Operation, Row Active After t
Read Start
Write Restart
Illegal
Illegal
Illegal
Illegal
(10)
(10)
(10)
(10)
(10)
(10)
(10)
(10,14)
(10)
(10)
(10)
(1,2)
RP
RP
RP
RP
RCD
RCD
RCD
DPL
DPL
DPL
Has Elapsed
Has Elapsed
Has Elapsed
Has Elapsed
Has Elapsed
Has Elapsed
Has Elapsed
Integrated Silicon Solution, Inc. — 1-800-379-4774
Has Elapsed
Has Elapsed
Has Elapsed
(10)
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
L
L
L
L
L
L
L
L
L
L
RAS CAS WE
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
A9
ISSI
X
X
X
V
V
V
V
X
X
X
X
V
V
V
V
X
X
X
X
V
V
V
V
X
X
X
X
V
V
V
V
X
OP CODE
OP CODE
OP CODE
OPCODE
A8 A7-A0
X
X
X
V
V
V
V
X
X
X
X
V
V
V
V
X
X
X
X
V
V
V
V
X
X
X
X
V
V
V
V
X
03/13/00
Rev. A
X
X
X
V
V
V
X
X
X
X
X
V
V
V
X
X
X
X
X
V
V
V
X
X
X
X
X
V
V
V
X
X
®