Pioneer AVIC-D3/XU/UC Service Manual page 288

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1
TC74LCX16373FT
A
1oe
1
1Q1
2
1Q2
3
GND
4
1Q3
5
1Q4
6
V
7
CC
B
1Q5
8
1Q6
9
GND
10
1Q7
11
1Q8
12
2Q1
13
2Q2
14
C
GND
15
2Q3
16
2Q4
17
V
18
CC
2Q5
19
2Q6
20
GND
21
D
2Q7
22
2Q8
23
2oe
24
E
F
288
1
2
48 1LE
47 1D1
46 1D2
45 GND
44 1D3
43 1D4
42 V
CC
41 1D5
40 1D6
39 GND
38 1D7
37 1D8
36 2D1
35 2D2
34 GND
33 2D3
32 2D4
CWW1423
CWW1424
31 V
CC
30 2D5
29 2D6
28 GND
27 2D7
26 2D8
25 2LE
reset
RY/by
AVIC-D3/XU/UC
2
3
1
1oe
1EN
48
1LE
C3
24
2oe
2EN
25
2LE
C4
47
1D1
3D
1
46
1D2
44
1D3
43
1D4
41
1D5
40
1D6
38
1D7
37
1D8
36
2D1
4D
2
35
2D2
33
2D3
32
2D4
30
2D5
29
2D6
27
2D7
26
2D8
A15
1
A14
2
A13
3
A12
4
A11
5
A0 to A17 : 18 address inputs
DQ0 to DQ14 : 15 data inputs/outputs
A10
6
DQ15/A-1 : DQ15 (data input/output,
A9
7
word mode),
A8
8
A-1 (LSB address input,
byte mode)
NC
9
byte : Selects 8-bit or 16-bit mode
NC
10
ce : Chip enable input
oe : Output enable input
we
11
we : Write enable input
12
reset : Hardware reset pin input
RY/by : Ready/busy output
NC
13
VCC : 3.0 volt-only single power supply
NC
14
VSS : Device ground
NC : Pin not connected internally
15
NC
16
A17
17
A7
18
A6
19
A5
20
A4
21
A3
22
A2
23
A1
24
3
4
2
1Q1
3
1Q2
5
1Q3
6
1Q4
8
1Q5
9
1Q6
11
1Q7
12
1Q8
13
2Q1
14
2Q2
16
2Q3
17
2Q4
19
2Q5
20
2Q6
22
2Q7
23
2Q8
48
A16
byte
47
46
VSS2
45
DQ15/A-1
44
DQ7
43
DQ14
42
DQ6
41
DQ13
40
DQ5
39
DQ12
38
DQ4
37
VCC
36
DQ11
35
DQ3
34
DQ10
33
DQ2
32
DQ9
31
DQ1
30
DQ8
29
DQ0
oe
28
27
VSS1
ce
26
25
A0
4

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