is45s32400b Integrated Silicon Solution, Inc., is45s32400b Datasheet - Page 7

• Manufacturer Part Number: is45s32400b
• Description: 4meg X 32 128-mbit Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

DQM TRUTH TABLE
IS45S32400B
COMMAND TRUTH TABLE
Note: H=V
Note: H=V
Integrated Silicon Solution, Inc. — www.issi.com —
Rev. B
07/10/06
Function
Data write / output enable
Data mask / output disable
Upper byte write enable / output enable
Lower byte write enable / output enable
Upper byte write inhibit / output disable
Lower byte write inhibit / output disable
Function
Device deselect (DESL)
No operation (NOP)
Burst stop (BST)
Read
Read with auto precharge
Write
Write with auto precharge
Bank activate (ACT)
Precharge select bank (PRE) H
Precharge all banks (PALL)
CBR Auto-Refresh (REF)
Self-Refresh (SELF)
Mode register set (MRS)
IH
IH
, L=V
, L=V
IL
IL
x= V
x= V
IH
IH
or V
or V
IL
IL
, V = Valid Data.
, V = Valid Data.
n – 1
CKE
H
H
H
H
H
H
H
H
H
H
H
H
n
×
×
×
×
×
H
×
×
×
×
×
L
×
CS
CS
CS
CS
CS
H
L
L
L
L
L
L
L
L
L
L
L
L
CKE
n-1
H
H
H
H
H
H
RAS
RAS
RAS
RAS
RAS
×
H
H
H
H
H
H
L
L
L
L
L
L
1-800-379-4774
n
×
×
×
×
×
×
CAS
CAS
CAS
CAS
CAS
×
H
H
H
H
H
L
L
L
L
L
L
L
WE
WE
WE
WE
WE
×
H
H
H
H
H
H
L
L
L
L
L
L
DQM
U
L
H
L
×
H
×
BA1
×
×
×
V
V
V
V
V
V
×
×
×
L
BA0
L
L
H
×
L
×
H
V
V
V
V
V
×
×
×
×
×
×
L
V
A10
×
×
×
H
H
V
H
×
×
L
L
L
L
ISSI
A9 - A0
A11
×
×
×
V
V
V
V
V
×
×
×
×
V
®
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