參數(shù)資料
型號(hào): 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(yè)數(shù): 81/94頁(yè)
文件大?。?/td> 3326K
代理商: HYB25D256160CC-5
Data Sheet
82
Rev. 1.6, 2004-12
HYB25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Timing Diagrams
5.6
Refresh: Self Refresh Mode Command
Figure 44 shows the timing diagram for Self Refresh Mode.
Figure 44
Self Refresh Mode
200
cycles
t IH
t IS
t XS
RD,
t XS
RN
t IH
t IS
t IH
t IS
t RP
*
t CK
t CL
t CH
AR
VA
LID
NO
P
VAL
ID
Enter
Self
R
ef
res
hM
ode
Ex
itSelf
Refr
esh
Mo
de
NO
P
*=
Device
must
be
in
the
all
banks
idle
state
before
e
ntering
Self
Refresh
Mode
.
**
=
t
XS
NR
is
required
b
efore
an
ynon-
read
comman
dcan
be
applied,
and
t
XS
RD
(200
cycles
of
CK).
CKE
Co
mmand
ADDR
DQS
DQ
DM
Don’t
Car
e
a
re
req
uir
ed
befor
ea
Read
command
can
be
applied.
CK
Clo
ck
must
be
stable
before
e
xiting
Self
R
efresh
Mode
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