is42s16800a-7tli Integrated Silicon Solution, Inc., is42s16800a-7tli Datasheet - Page 36

• Manufacturer Part Number: is42s16800a-7tli
• Description: 16meg X 8, 8meg X16 & 4meg X 32 128-mbit Synchronous Dram - Integrated Silicon Solution, Inc
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S81600A, IS42S16800A, IS42S32400A
READ - DQM OPERATION
36
Notes:
1) CAS latency = 2, Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
DQML, DQMH
X32: A8, A9, and A11 = "Don't Care"
COMMAND
A0-A9, A11
BA0, BA1
DQM/
CKE
CLK
A10
DQ
t
t
CKS
CMS
t
t
t
ACTIVE
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
Integrated Silicon Solution, Inc. — www.issi.com —
(2)
CAS Latency
NOP
T3
x xx
t
LZ
t
AC
NOP
T4
D
OUT
xx
x x
t
OH
t
HZ
m
NOP
T5
t
LZ
t
AC
x
NOP
D
T6
OUT
t
OH
m+
t
AC
2
PRELIMINARY INFORMATION Rev. 00C
D ON'T CARE
UNDEFINED
NOP
T7
D
OUT
t
OH
m+
t
HZ
3
NOP
ISSI
T8
1-800-379-4774
01/20/05
®