is42s16160d-7ti Integrated Silicon Solution, Inc., is42s16160d-7ti Datasheet - Page 36

• Manufacturer Part Number: is42s16160d-7ti
• Description: 32meg X 8, 16meg X16 256-mbit Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S83200D, IS42S16160D
IS45S83200D, IS45S16160D
36
READ - DQM OPERATION
Notes:
1) CAS latency = 2, Burst Length = 4
2) x16: A9, A11, and A12 = "Don't Care"
A0-A9, A11, A12
x8: A11 and A12 = "Don't Care"
DQML, DQMH
COMMAND
BA0, BA1
DQM/
CKE
CLK
A10
DQ
t
t
CKS
CMS
ACTIVE
t
t
t
AS
AS
AS
BANK
ROW
ROW
T0
t
t
CKH
t
t
t
CMH
AH
AH
AH
t
CK
t
NOP
RCD
T1
DISABLE AUTO PRECHARGE
ENABLE AUTO PRECHARGE
t
t
CMS
CL
COLUMN m
READ
BANK
T2
t
CMH
t
CH
(2)
CAS Latency
NOP
T3
t
LZ
t
AC
NOP
T4
D
OUT
t
OH
t
Integrated Silicon Solution, Inc. — www.issi.com
HZ
m
NOP
T5
t
LZ
t
AC
NOP
D
T6
OUT
t
OH
m+
t
AC
2
DON'T CARE
UNDEFINED
NOP
T7
D
OUT
t
OH
m+
t
HZ
3
NOP
T8
02/19/09
Rev. A