IS42S83200D Datasheet, PDF (21/63 Pages) Integrated Silicon Solution, Inc – 32Meg x 8, 16Meg x16 256-MBIT SYNCHRONOUS DRAM

IS42S83200D, IS42S16160D
IS45S83200D, IS45S16160D
Initialize and Load Mode Register⁽¹⁾
T0
T1
CLK
tCK
tCKS tCKH
CKE
tCMH tCMS tCMH tCMS
COMMAND _NOP
PRECHARGE
Tn+1
tCH
tCMH tCMS
AUTO
REFRESH
DQM/
DQML, DQMH
To+1
tCL
NOP
AUTO
REFRESH
A0-A9, A11, A12
A10
BA0, BA1
ALL BANKS
SINGLE BANK
ALL BANKS
Tp+1
Tp+2
Tp+3
NOP
Load MODE
REGISTER
NOP
ACTIVE
tAS tAH
CODE
tAS tAH
CODE
tAS tAH
CODE
ROW
ROW
BANK
DQ
T
Power-up: VCC
and CLK stable
T = 200µs Min.
tRP
tRC
tRC
Precharge AUTO REFRESH
AUTO REFRESH
all banks
At least 8 Auto-Refresh Commands
tMRD
Program MODE REGISTER^{(2, 3, 4)}
DON'T CARE
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.  B
06/11/09