®
IS42S81600A, IS42S16800A, IS42S32400A
IS42LS81600A, IS42LS16800A, IS42LS32400A
ISSI
POWER-DOWN MODE CYCLE
T0
T1
T2
Tn+1
Tn+2
t
CK
t
CL
t
CH
CLK
CKE
t
CKS
t
CKH
t
CKS
t
CKS
t
CMS
t
CMH
COMMAND
PRECHARGE
NOP
NOP
NOP
ACTIVE
DQM/
DQML, DQMH
A0-A9, A11
A10
ROW
ROW
ALL BANKS
SINGLE BANK
t
AS
t
AH
BA0, BA1
DQ
BANK
BANK
High-Z
Two clock cycles
Input buffers gated
All banks idle
off while in
Precharge all
active banks
All banks idle, enter
power-down mode
power-down mode
DON'T CARE
Exit power-down mode
CAS latency = 2, 3
54
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
ADVANCEDINFORMATION Rev. 00A
06/01/02