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7
AX16-AT
9
VDD
4Y
3B
2B
2Y
1Y
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3Y
2A
1B
1A
4A
4B
3A
Vss
SN74HC74NSR (XC726A00)
D-FF
IC207,307,504
SN74HC08NSR (XD831A00)
AND
IC506
SN74HC86NSR (XM022A00)
EX-OR
IC501
Vcc
2CLR
2Q
GND
1Q
1PR
1CRL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2PR
1Q
1CK
1D
2D
2CK
2Q
Q
PR
Q
CK
D
Q
PR
D
CK
Q
CLR
CLR
INPUTS
OUTPUTS
L
L
H
H
H
H
PR
H
L
L
H
H
H
CLR
X
X
X
L
CLK
X
X
X
H
L
X
D
H
H
L
H
L
Q
Q
L
H
H
L
H
Q
Q
Vcc
4B
3Y
2Y
2A
1A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3B
2B
1Y
1B
4A
4Y
3A
GND
1
2
3
4
5
6
7
8
13
14
15
16
17
18
19
20
9
10
11
12
VD(Vcc)
2G
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
(GND)Vss
2Y1
1A4
2Y2
1A3
2Y3
1A2
2Y4
1A1
1G
TC74VHC244F (XT800A00)
BUS BUFFER
IC308
Vcc
INPUTS B
OUTPUT B
INPUTS D
GND
INPUTSC
OUTPUTC
ENABLE
OUTPUTA
INPUTSA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ENABLE
OUTPUT D
+
-
+
-
+
-
+
-
DS26C32ATMX (XT475A00)
LINE RECEIV
IC208
TC74VHC245F (XT487A00)
LINE RECEIV
IC108
1
2
3
4
5
6
7
8
13
14
15
16
17
18
19
20
9
10
11
12
Vcc
G
B1
B2
B3
B4
B5
B6
B7
B8
GND
A8
A7
A6
A5
A4
A3
A2
A1
D1R
HD74HC123AFPTR (XL106A00)
TC74HC123AF (XN242A00)
SINGLE SHOT
IC502
Vcc
1 Rext /Cext
Cext
2B
2A
GND
2 Rext /Cext
3
4
5
6
7
8
9
10
11
12
13
14
2Q
CLR
1Q
1
1Q
2Q
2 Cext
CLR
Q
CLR
Q
Q
Q
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TEL 13942296513
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5
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Q
Q
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TEL 13942296513 QQ 376315150 892498299