22
VYW1602 (DVDM ASSY : IC603)
• Flash ROM
•
Block Diagram
•
Pin Function
RY/BY
BUFFER
RY/BY
WE
43
1
WRITE
CIRCUIT
STB
STB
ERASE
CIRCUIT
CHIP ENABLE
OUTPUT ENABLE
CIRCUIT
WRITE/ERASE
PULSE TIMER
LOW V
CC
DET. CIRCUIT
Y DECODER
ADDRESS LATCH
X DECODER
CONTROL
CIRCUIT
BYTE
RY/BY
33
RESET
44
CE
12
OE
14
A
0
-A
18
A
-1 31
2-11,
34-42
DQ
0
-DQ
15
15-22,
24-31
INPUT/OUTPUT
BUFFER
DATA LATCH
Y GATE
8,388,608
CELL
MATRIX
.
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
Y
B
/
Y
R
t
u
p
t
u
o
y
s
u
B
/
y
d
a
e
R
3
2
V C
C
V
0
.
5
+
(
y
l
p
p
u
s
r
e
w
o
P
±
r
o
%
0
1
±
)
%
5
2
8
1
A
t
u
p
n
i
s
s
e
r
d
d
A
4
2
4
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
3
7
1
A
5
2
2
1
Q
D
4
7
A
6
2
5
Q
D
5
6
A
7
2
3
1
Q
D
6
5
A
8
2
6
Q
D
7
4
A
9
2
4
1
Q
D
8
3
A
0
3
7
Q
D
9
2
A
1
3
1
-
A
/
5
1
Q
D
t
u
p
n
i
s
s
e
r
d
d
a
/
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
0
1
1
A
2
3
V S
S
d
n
u
o
r
G
1
1
0
A
3
3
E
T
Y
B
s
e
d
o
m
t
i
b
6
1
d
n
a
t
i
b
8
e
h
t
h
c
t
i
w
S
2
1
E
C
e
l
b
a
n
e
p
i
h
C
4
3
6
1
A
t
u
p
n
i
s
s
e
r
d
d
A
3
1
V S
S
d
n
u
o
r
G
5
3
5
1
A
4
1
E
O
e
l
b
a
n
e
t
u
p
t
u
O
6
3
4
1
A
5
1
0
Q
D
t
u
p
t
u
o
/
t
u
p
n
i
a
t
a
D
7
3
3
1
A
6
1
8
Q
D
8
3
2
1
A
7
1
1
Q
D
9
3
1
1
A
8
1
9
Q
D
0
4
0
1
A
9
1
2
Q
D
1
4
9
A
0
2
0
1
Q
D
2
4
8
A
1
2
3
Q
D
3
4
E
W
e
l
b
a
n
e
e
t
i
r
W
2
2
1
1
Q
D
4
4
T
E
S
E
R
t
e
s
e
r
e
r
a
w
d
r
a
H