IS42S81600D, IS42S16800D
ALTERNATING BANK WRITE ACCESSES
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
tCK
t
CL
tCH
CLK
CKE
t
CKS tCKH
t
CMS
tCMH
COMMAND
ACTIVE
NOP
WRITE
NOP
ACTIVE
NOP
WRITE
NOP
NOP
ACTIVE
t
CMS tCMH
DQM/DQML
DQMH
t
t
t
AS
tAH
COLUMN m(2)
ROW
ROW
COLUMN b(2)
ROW
ROW
A0-A9, A11
A10
ROW
AS
t
AH
ENABLE AUTO PRECHARGE
ENABLE AUTO PRECHARGE
ROW
AS
tAH
BANK 0
BANK 1
BANK 1
BANK 0
BA0, BA1
BANK 0
t
DS
t
DH
t
DS
t
DH
tDS
t
DH
tDS
t
DH
t
DS
t
DH
t
DS
t
DH
tDS
tDH
t
DS
tDH
DQ
DIN
m
D
IN m+
1
D
IN m+
2
D
IN m+
3
D
IN
b
D
IN b+
1
D
IN b+
2
DIN b+3
t
t
t
t
RCD - BANK 0
RRD
t
DPL - BANK 0
t
RP - BANK 0
t
RCD - BANK 0
t
RCD - BANK 1
tDPL - BANK 1
RAS - BANK 0
RC - BANK 0
DON'T CARE
Notes:
1) Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
X8: A11 = "Don't Care"
44
Integrated Silicon Solution, Inc. — www.issi.com
Rev. E
07/28/08
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
