Pin Assignment - Onkyo DV-CP702 Service Manual

IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
Q2301: TC74VCX162373FT 16-BIT D-TYPE LATCH

PIN ASSIGNMENT

1OE 1
1Q1 2
1Q2 3
GND 4
1Q3 5
1Q4 6
VCC 7
1Q5 8
1Q6
9
GND 10
1Q7 11
1Q8 12
2Q1 13
2Q2 14
GND 15
2Q3 16
2Q4 17
VCC 18
2Q5 19
2Q6 20
GND 21
2Q7
22
2Q8 23
2OE 24
SYSTEM DIAGRAM
1D1 1D2
47 46
D D
LE Q LE Q
48
1LE
1
1OE
2
1Q1
2D1 2D2
36 35
D D
LE Q LE Q
25
2LE
24
2OE
13
2Q1
48 1LE
47 1D1
46 1D2
45 GND
44 1D3
43 1D4
42 VCC
41 1D5
1D6
40
39 GND
38 1D7
37 1D8
36 2D1
35 2D2
34 GND
33 2D3
32 2D4
31 VCC
30 2D5
29 2D6
28 GND
2D7
27
26 2D8
25 2LE
1D3 1D4 1D5 1D6 1D7
44 43 41 40 38
D D D D D
LE Q LE Q LE Q LE Q LE Q
3 5 6 8 9
1Q2 1Q3 1Q4 1Q5 1Q6
2D3 2D4 2D5 2D6 2D7
33 32 30 29 27
D D D D D
LE Q LE Q LE Q LE Q LE Q
14 16 17 19 20
2Q2 2Q3 2Q4 2Q5 2Q6
Truth Table
1OE
H
L
L
L
1D8
37
D
2OE
H
LE Q
L
L
L
11 12
X: Don't care
1Q7 1Q8
Z: High impedance
Qn: Q output are latched at the time
2D8
26
when the LE input is taken to a low logic level.
D
LE Q
22 23
2Q7 2Q8
DV-CP702
Inputs Outputs
1LE 1D1-1D8 1Q1-1Q8
X X Z
L X Qn
H L L
H H H
Inputs Outputs
2LE 2D1-2D8 2Q1-2Q8
X X Z
L X Qn
H L L
H H H