31
MB811171622A-100FN (DVDM ASSY : IC802)
• Code Buffer (16M bit SDRAM)
•
Block Diagram
•
Pin Function
35
34
18
17
16
15
CLK
CKE
CS
RAS
CAS
To
Blocks
Bank 0
Bank 1
RAS
CAS
WE
I/O
Row Address
Column Address
WE
A
0
-A
11
,
AP
Command
Decoder
Mode
Register
DRAM Core
(2,048
×
256
×
16)
Address
Buffer/
Register
&
Bank
Select
Clock
Buffer
14
36
DQML
V
CC
/V
CCQ
DQMU
I/O Data
Buffer/
Register
21-24, 27-32, 20, 19
1,7,13,25,38,44
V
SS
/V
SSQ
4,10,26,41,47,50
DQ
0
-DQ
15
2,3,5,6,8,9,11,12,39,
40,42,43,45,46,48,49
Column
Address
Counter
Control
Signal
Latch
.
o
N
e
m
a
N
n
i
P
n
o
i
t
c
n
u
F
.
o
N
e
m
a
N
n
i
P
n
o
i
t
c
n
u
F
1
C
C
V
)
V
3
.
3
+
(
y
l
p
p
u
s
r
e
w
o
P
6
2
S
S
V
d
n
u
o
r
G
2
0
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
7
2
4
A
t
u
p
n
i
s
s
e
r
d
d
A
7
A
o
t
0
A
:
n
m
u
l
o
C
,
0
1
A
o
t
0
A
:
w
o
R
3
1
Q
D
8
2
5
A
4
Q
S
S
V
d
n
u
o
r
G
9
2
6
A
5
2
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
0
3
7
A
6
3
Q
D
1
3
8
A
7
Q
C
C
V
)
V
3
.
3
+
(
y
l
p
p
u
s
r
e
w
o
P
2
3
9
A
8
4
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
3
3
U
D
)
n
e
p
o
r
o
f
e
s
u
(
e
s
u
t
'
n
o
D
9
5
Q
D
4
3
E
K
C
e
l
b
a
n
e
k
c
o
l
C
0
1
Q
S
S
V
d
n
u
o
r
G
5
3
K
L
C
t
u
p
n
i
k
c
o
l
C
1
1
6
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
6
3
U
M
Q
D
e
l
b
a
n
e
t
u
p
t
u
O
/
k
s
a
m
t
u
p
n
I
2
1
7
Q
D
7
3
U
D
)
n
e
p
o
r
o
f
e
s
u
(
e
s
u
t
'
n
o
D
3
1
Q
C
C
V
)
V
3
.
3
+
(
y
l
p
p
u
s
r
e
w
o
P
8
3
Q
C
C
V
)
V
3
.
3
+
(
y
l
p
p
u
s
r
e
w
o
P
4
1
L
M
Q
D
e
l
b
a
n
e
t
u
p
t
u
O
/
k
s
a
m
t
u
p
n
I
9
3
8
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
5
1
E
W
e
l
b
a
n
e
e
t
i
r
W
0
4
9
Q
D
6
1
S
A
C
e
b
o
r
t
s
s
s
e
r
d
d
a
n
m
u
l
o
C
1
4
Q
S
S
V
d
n
u
o
r
G
7
1
S
A
R
e
b
o
r
t
s
s
s
e
r
d
d
a
w
o
R
2
4
0
1
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
8
1
S
C
t
c
e
l
e
s
p
i
h
C
3
4
1
1
Q
D
9
1
)
A
B
(
1
1
A
t
c
e
l
e
s
k
n
a
B
4
4
Q
C
C
V
)
V
3
.
3
+
(
y
l
p
p
u
s
r
e
w
o
P
0
2
P
A
/
0
1
A
t
u
p
n
i
s
s
e
r
d
d
A
7
A
o
t
0
A
:
n
m
u
l
o
C
,
0
1
A
o
t
0
A
:
w
o
R
e
l
b
a
n
e
e
g
r
a
h
c
-
e
r
p
o
t
u
A
/
5
4
2
1
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
1
2
0
A
t
u
p
n
i
s
s
e
r
d
d
A
7
A
o
t
0
A
:
n
m
u
l
o
C
,
0
1
A
o
t
0
A
:
w
o
R
6
4
3
1
Q
D
2
2
1
A
7
4
Q
S
S
V
d
n
u
o
r
G
3
2
2
A
8
4
4
1
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
4
2
3
A
9
4
5
1
Q
D
5
2
C
C
V
)
V
3
.
3
+
(
y
l
p
p
u
s
r
e
w
o
P
0
5
S
S
V
d
n
u
o
r
G