參數(shù)資料
型號: HYB25D256160TE-3
廠商: INFINEON TECHNOLOGIES AG
英文描述: 122 x 32 pixel format, LED Backlight available
中文描述: 記憶譜
文件頁數(shù): 77/94頁
文件大?。?/td> 3326K
代理商: HYB25D256160TE-3
HYB25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Timing Diagrams
Data Sheet
79
Rev. 1.6, 2004-12
5.3
Initialization and Mode Register Set Command
Figure 41 shows the timing diagram for initialization and Mode Register Sets.
Figure 41
Initialize and Mode Register Sets
t IH
20
0
s
t IS
t IH
t IS
t IH
t IS
t IH
t IS
t IH
t IS
t IH
t IS
t IH
t IS
t MR
D
t RF
C
t RF
C
t RP
t MR
D
t MR
D
t CL
t CK
t CH
t VT
D
PR
E
MR
S
M
R
S
PR
E
A
R
A
R
M
R
S
NOP
AC
T
CODE
RA
CODE
RA
BA
0=
L
BA
0
=
L
BA
High
-Z
High
-Z
Power-
up:
V
D
and
CK
st
able
Extend
ed
M
ode
Re
gi
st
er
Set
Lo
ad
Mo
de
Reg
ister
,R
e
set
DL
L
Lo
ad
Mo
de
Re
gi
st
e
r
(w
ith
A
8
=
L)
VDD
VDDQ
VTT
(Sys
tem
*)
VREF
CK
CKE
Command
DM
A0-A9,
A11
A10
BA0,
BA1
DQS
DQ
LV
C
M
O
S
LOW
LE
VEL
A
LL
BANK
S
BA0
=H
BA
1=
L
BA
1=
L
BA1
=L
A
LL
BANK
S
*
V
T
is
not
ap
plied
di
rect
ly
to
the
de
vi
ce
,however
t VT
D
mu
st
be
**
t
MRD
is
re
quir
ed
bef
ore
any
command
can
be
ap
plied
an
d
T
he
two
Aut
o
re
fr
esh
comma
nds
ma
ybe
moved
to
fo
llow
the
first
MRS,
grea
ter
t
han
or
eq
ual
to
zer
o
t
o
avoid
de
vi
ce
la
tchup
.
20
0
cycles
of
CK
are
re
quire
d
be
fore
a
Read
command
can
be
ap
plied
.
but
pr
ecede
the
second
Pre
ch
a
rge
Al
lcomma
nd.
Don’t
Care
20
0c
yc
le
sof
CK
**
CK
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