is42s16800al-7tli Integrated Silicon Solution, Inc., is42s16800al-7tli Datasheet - Page 26

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

INITIALIZE / LOAD MODE REGISTER AND EXTEND MODE REGISTER
Note
can be in any order. However, all must occur prior to an Active Command.
IS42S81600AL, IS42S16800AL, IS42S32400AL
IS42LS81600AL, IS42LS16800AL, IS42LS32400AL
26
DQMH/DQM0-3
DQM/DQML
COMMAND
A0-A9, A11
:
BA0, BA1
The Load Mode Register for both Mode Register / Extended Mode Register and two Auto Refresh Commands
CKE
CLK
A10
DQ
Power-up: V
and CLK stable
T = 100µs Min.
t
t
T
CKS
CMS
NOP
T0
t
t
CKH
CMH
t
HighZ
CK
CC
t
ALL BANKS
CMS
PRECHARGE
T1
Precharge
all banks
t
CMH
t
RP
t
CMS
REFRESH
Tn+1
AUTO
AUTO REFRESH
t
CMH
t
CH
t
NOP
Integrated Silicon Solution, Inc. — www.issi.com —
RFC
t
CL
REFRESH
To+1
AUTO
AUTO REFRESH
t
NOP
RFC
t
t
Load MODE
REGISTER
AS
AS
CODE
CODE
Tp+1
BA0=L
BA1=H
Extended MODE REGISTER
t
t
AH
AH
PRELIMINARY
DON'T CARE
Load MODE
CODE
Tp+4
REGISTER
CODE
BA0=L
BA1=L
MODE REGISTER
Tp+5
NOP
INFORMATION
Tp+6
ACTIVE
BANK
ROW
ROW
ISSI
1-800-379-4774
Rev. 00A
09/18/03
®