22
AVR-1907 / AVR-787 / AVC-1630
LH28F800BJE (IC805)
SN74LV573APWR (IC818,819)
SN74LVC139APWR (IC820)
SN74LV14APWR (IC829) MM74HCT00MTCX (IC814,815)
1
2
3
4
5
6
7
8
10
9
20
19
18
17
16
15
14
13
12
11
OE
D0
D1
D2
D3
D4
D5
D6
D7
GND
Vcc
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
LE
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D
Q
L
D0
D1 D2
D3 D4 D5 D6
D7
L
E
OE
1
234
567
89
11
12131415
16
17
1819
Q0 Q1
Q2
Q3
Q4 Q5 Q6 Q7
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
V
CC
2G
2A
2B
2Y0
2Y1
2Y2
2Y3
FUNCTION TABLE
(each decoder/demultiplexer)
INPUTS
OUTPUTS
G
SELECT
OUTPUTS
G
B A Y3 Y2 Y1 Y0
L L L H H H L
L L HHHLH
L H LHLHH
L H HLHHH
H X X H H H H
1A
1B
1Y
2A
2B
2Y
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vcc
4B
4A
4Y
3B
3A
3Y
GND
1A
1Y
2A
2Y
3A
3Y
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vcc
6A
6Y
5A
5Y
4A
4Y
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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