參數(shù)資料
型號(hào): HYB25D256160BT-7
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): 83/94頁
文件大?。?/td> 3326K
代理商: HYB25D256160BT-7
Data Sheet
84
Rev. 1.6, 2004-12
HYB25D256[16/40/80]0C[E/C/F/T](L)
256 Mbit Double-Data-Rate SDRAM
Timing Diagrams
5.8
Read: With Auto Precharge Command
Figure 46 shows the timing diagram for Read with Auto Precharge.
Figure 46
Read with Auto Precharge (Burst Length = 4)
t HZ
(m
ax
)
t LZ
(ma
x)
t HZ
(min
)
t RPS
T
t LZ
(min
)
t IH
t IS
t IH
t IS
t IH
t IS
t IH
t IS
t IH
t IS
t RP
t CL
t CH
t CK
N
O
P
N
OP
NOP
A
CT
NO
P
N
OP
N
O
P
NOP
DO
n
=
dat
a
out
fr
om
column
n.
3
subseq
uent
elemen
ts
of
da
ta
out
are
pro
vi
ded
in
the
prog
rammed
ord
e
rfo
llowing
DO
n.
E
N
AP
=
ena
ble
Aut
o
Pre
ch
a
rge
.
AC
T
=
ac
tive;
RA
=
row
address.
NOP
comma
nds
ar
e
shown
fo
r
ea
se
of
illu
st
ra
tio
n
;other
comman
d
s
may
be
valid
at
the
se
times.
BA
x
VA
LID
V
A
L
ID
VA
LID
NOP
Re
ad
CO
L
n
R
A
RA
DO
n
CKE
Command
A10
B
A
0,
BA1
DM
DQS
DQ
DQS
DQ
A0
-A9,
A11,
A12
t DQSCK
(m
ax)
t RPRE
CL
=2
t RPRE
Don’t
C
are
Ca
se
1:
t AC
/t
DQ
SCK
=
min
Ca
se
2:
t AC
/t
DQ
SCK
=
max
t RP
ST
t AC
(ma
x)
t LZ
(m
ax)
t DQ
S
C
K
(mi
n)
t AC
(min
)
DO
n
EN
AP
BA
x
C
K
C
K
t LZ
(m
in)
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