Q8813, Q8814, Q8817, Q8818: TC74VCX162827(20 bit BUS BUFFER)
PIN ASSIGNMENT
TRUTH TABLE
SYSTEM DIAGRAM
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -60
TX-SR806/SA806
TOP VIEW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
10E1
1Y1
1Y2
GND
1Y3
1Y4
VCC
1Y5
1Y6
1Y7
GND
1Y8
1Y9
1Y10
2Y1
2Y2
2Y3
GND
2Y4
2Y5
2Y6
VCC
2Y7
2Y8
GND
2Y9
2Y10
20E1
10E2
1A1
1A2
GND
1A3
1A4
VCC
1A5
1A6
1A7
GND
1A8
1A9
1A10
2A1
2A2
2A3
GND
2A4
2A5
2A6
VCC
2A7
2A8
GND
2A9
2A10
20E2
Inputs
Outputs
OE1
L
L
H
X
OE2
L
L
X
H
A
L
H
X
X
Y
L
H
Z
Z
10E1
10E2
1A1
1Y1
1
56
55
2
To nine other channels
20E1
20E2
2A1
2Y1
28
29
42
15
To nine other channels