參數(shù)資料
型號: HYB25D256160CC-5
廠商: INFINEON TECHNOLOGIES AG
英文描述: 256 Mbit Double Data Rate SDRAM
中文描述: 256兆雙倍數(shù)據(jù)速率SDRAM
文件頁數(shù): 79/94頁
文件大?。?/td> 3326K
代理商: HYB25D256160CC-5
Data Sheet
80
Rev. 1.6, 2004-12
HYB25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Timing Diagrams
5.4
Power: Power Down Mode Command
Figure 42 shows the timing diagram for Power Down Mode.
Figure 42
Power Down Mode
t IH
t IS
t IH
t IS
t IH
t IS
t CL
t CH
t CK
NO
P
VALID
*
VALID
En
te
rP
o
w
e
r
D
o
wn
M
ode
Exi
tPowe
r
Down
Mod
e
No
colu
mn
ac
cesses
are
allo
w
ed
to
be
in
pr
ogress
at
the
ti
me
po
wer
down
is
ent
ered
.
*=
If
th
is
co
mm
and
is
a
Pr
echarg
e
(o
rif
the
device
is
al
read
yin
the
idle
st
ate
)
th
en
the
po
w
er
down
mode
shown
is
P
rechar
ge
power
do
wn.
If
th
is
comman
d
is
an
Ac
tive
(or
if
at
least
one
row
is
al
ready
acti
ve
),
then
th
e
po
w
er
down
mode
shown
is
Active
po
w
er
do
wn.
CKE
Command
ADDR
DQS
DQ
DM
Don’t
Care
C
K
C
K
NOP
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