IS42S81600D, IS42S16800D
WRITE - DQM OPERATION
T0
T1
T2
T3
T4
T5
T6
T7
t
CK
t
CL
t
CH
CLK
CKE
t
CKS CKH
t
t
CMS
tCMH
COMMAND
ACTIVE
NOP
WRITE
NOP
NOP
NOP
NOP
NOP
t
CMS
tCMH
DQM/DQML
DQMH
t
t
t
AS
t
AH
COLUMN m(2)
A0-A9, A11
A10
ROW
AS
t
AH
ENABLE AUTO PRECHARGE
ROW
DISABLE AUTO PRECHARGE
AS
t
AH
BA0, BA1
BANK
BANK
t
DS
t
DH
tDS
t
DH
t
DS
t
DH
D
IN
m
D
IN m+
2
D
IN m+3
DQ
tRCD
DON'T CARE
Notes:
1) Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
X8: A11 = "Don't Care"
Integrated Silicon Solution, Inc. — www.issi.com
43
Rev. E
07/28/08