IS42S81600D, IS42S16800D
INITIALIZE AND LOAD MODE REGISTER(1)
T0
T1
Tn+1
tCH
To+1
tCL
Tp+1
Tp+2
Tp+3
tCK
CLK
CKE
tCKS tCKH
tCMH tCMS
tCMH tCMS
PRECHARGE
tCMH tCMS
AUTO
AUTO
Load MODE
REGISTER
COMMAND
NOP
NOP
NOP
NOP
ACTIVE
REFRESH
REFRESH
DQM/
DQML, DQMH
tAS tAH
A0-A9, A11
A10
ROW
ROW
BANK
CODE
tAS tAH
ALL BANKS
CODE
SINGLE BANK
ALL BANKS
tAS tAH
BA0, BA1
DQ
CODE
tRP
tRC
tRC
tMRD
T
Power-up: VCC
and CLK stable all banks
Precharge AUTO REFRESH
AUTO REFRESH
Program MODE REGISTER(2, 3, 4)
DON'T CARE
T = 100µs Min.
Notes:
1. If CS is High at clock High time, all commands applied are NOP.
2. The Mode register may be loaded prior to the Auto-Refresh cycles if desired.
3. JEDEC and PC100 specify three clocks.
4. Outputs are guaranteed High-Z after the command is issued.
Integrated Silicon Solution, Inc. — www.issi.com
21
Rev. E
07/28/08
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
