參數(shù)資料
型號: IS42S16128-8T
廠商: INTEGRATED SILICON SOLUTION INC
元件分類: DRAM
英文描述: Chassis Mount and Din Rail Filters RoHS Compliant: Yes
中文描述: 256K X 16 SYNCHRONOUS DRAM, 8 ns, PDSO50
封裝: 0.400 INCH, TSOP2-50
文件頁數(shù): 13/75頁
文件大小: 638K
代理商: IS42S16128-8T
IS42S16128
ISSI
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
03/13/00
13
OPERATION COMMAND TABLE
(1,2)
Current State
Command
Operation
CS
RAS
CAS
WE
A9
A8 A7-A0
Idle
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
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
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
No Operation or Power-Down
(12)
No Operation or Power-Down
(12)
No Operation or Power-Down
Illegal
Illegal
Row Active
No Operation
Auto-Refresh or Self-Refresh
(13)
Mode Register Set
No Operation
No Operation
No Operation
Read Start
(17)
Write Start
(17)
Illegal
(10)
Precharge
(15)
Illegal
Illegal
Burst Read Continues, Row Active When Done
Burst Read Continues, Row Active When Done
Burst Interrupted, Row Active After Interrupt
Burst Interrupted, Read Restart After Interrupt
(16)
Burst Interrupted Write Start After Interrupt
(11,16)
Illegal
(10)
Burst Read Interrupted, Precharge After Interrupt
Illegal
Illegal
Burst Write Continues, Write Recovery When Done
Burst Write Continues, Write Recovery When Done
Burst Write Interrupted, Row Active After Interrupt
Burst Write Interrupted, Read Start After Interrupt
(11,16)
Burst Write Interrupted, Write Restart After Interrupt
(16)
Illegal
(10)
Burst Write Interrupted, Precharge After Interrupt
Illegal
Illegal
Burst Read Continues, Precharge When Done
Burst Read Continues, Precharge When Done
Illegal
Illegal
Illegal
Illegal
(10)
Illegal
(10)
Illegal
Illegal
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
X
X
V
V
V
V
X
X
X
X
V
V
V
V
X
X
X
X
V
V
V
X
X
OP CODE
X
X
X
V
V
V
V
X
OP CODE
X
X
X
V
V
V
V
X
OP CODE
X
X
X
V
V
V
V
X
OP CODE
X
X
X
V
V
V
V
X
OP CODE
Row Active
X
X
X
V
V
V
V
X
X
X
X
V
V
V
X
X
Read
X
X
X
V
V
V
V
X
X
X
X
V
V
V
X
X
Write
X
X
X
V
V
V
V
X
X
X
X
V
V
V
X
X
Read With
Auto-
Precharge
X
X
X
V
V
V
V
X
X
X
X
V
V
V
X
X
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