is42s16800al-7tli Integrated Silicon Solution, Inc., is42s16800al-7tli Datasheet - Page 38

• Manufacturer Part Number: is42s16800al-7tli
• Description: 128-mbit Low-power Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

IS42S81600AL, IS42S16800AL, IS42S32400AL
IS42LS81600AL, IS42LS16800AL, IS42LS32400AL
38
Notes:
1) CAS latency = 2, Burst Length = 4
2) X16: A9 and A11 = "Don't Care"
ALTERNATING BANK READ ACCESSES
DQMH/DQM0-3
X32: A8, A9, and A11 = "Don't Care"
DQM/DQML
COMMAND
A0-A9, A11
BA0, BA1
CKE
CLK
A10
DQ
t
t
CKS
CMS
t
t
t
BANK 0
AS
AS
AS
ACTIVE
ROW
ROW
T0
t
CKH
t
t
t
t
CMH
AH
AH
AH
t
t
t
t
RCD
RRD
RAS
RC
t
- BANK 0
CK
- BANK 0
- BANK 0
ENABLE AUTO PRECHARGE
T1
NOP
t
t
CMS
CL
COLUMN m
BANK 0
READ
T2
t
CMH
Integrated Silicon Solution, Inc. — www.issi.com —
t
CH
(2)
CAS Latency - BANK 0
T3
NOP
t
LZ
t
AC
BANK 3
ACTIVE
ROW
ROW
T4
D
OUT
t
OH
m
t
AC
t
RCD
- BANK 3
ENABLE AUTO PRECHARGE
T5
D
NOP
OUT
t
OH
m+
t
1
AC
COLUMN b
BANK 3
PRELIMINARY
READ
T6
D
OUT
t
OH
m+
t
(2)
RP
t
2
AC
CAS Latency - BANK 3
- BANK 0
T7
D
NOP
OUT
t
OH
m+
t
3
INFORMATION
AC
BANK 0
ACTIVE
ISSI
ROW
T8
ROW
DON'T CARE
D
1-800-379-4774
OUT
t
OH
b
t
RCD
t
AC
- BANK 0
Rev. 00A
09/18/03
®