IS42S83200B ISSI [Integrated Silicon Solution, Inc], IS42S83200B Datasheet - Page 8

• Manufacturer Part Number: IS42S83200B
• Description: 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM
• Manufacturer: ISSI [Integrated Silicon Solution, Inc]

DQM TRUTH TABLE
IS42S83200B,
COMMAND TRUTH TABLE
Note: H=V
Note: H=V
8
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
IS42S16160B
IL
IL
, V = Valid Data.
, V = Valid Data.
n – 1
CKE
H
H
H
H
H
H
H
H
H
H
H
H
H
n
×
×
×
×
×
×
×
×
×
×
L
×
CS
CS
CS
CS
CS
H
L
L
L
L
L
L
L
L
L
L
L
L
Integrated Silicon Solution, Inc. — www.issi.com —
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
×
×
×
×
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
DQMH
L
H
L
×
H
×
BA1
V
V
V
V
V
V
×
×
×
×
×
×
L
PRELIMINARY INFORMATION Rev. 00E
BA0
DQML
L
H
×
L
×
H
V
V
V
V
V
×
×
×
×
×
×
L
V
A10
H
H
V
H
×
×
×
L
L
L
×
×
L
ISSI
1-800-379-4774
A9 - A0
A12, A11
V
V
V
V
V
V
×
×
×
×
×
×
×
05/25/06
®