JVC MX-DVA9 Service Manual page 62

MX-DVA9/MX-DVA9R
MR27V1602E2JMAX (IC402) : 16M ROM
1.Terminal layout
2.Pin function
Pin No . Symbol
1 /WE
2 A19
3 A18
4 A8
5 A7
6 A6
7 A5
8 A4
9 A3
10 A2
11 A1
12 CE
13 VSS
14 DE
15 D0
16 D8
17 D1
18 D9
19 D2
20 D10
21 D3
22 D11
1-62
1
NC 44 NC
2 43
A18
A19
3 A8
A17 42
A7
4 41 A9
A6 5 40 A10
A5 6 39 A11
38
7 A12
A4
8 A13
A3 37
9 36 A14
A2
35 A15
A1 10
A0 11 34 A16
33
CE 12
BYTE/Vpp
Vss Vss
32
13
14 31 D15/A-1
OE
30 D7
D0 15
29 D14
D8
16
D1 17 D6
28
D9 18
27 D13
D2 19
26 D5
D10
20 25
D12
D3 21 24 D4
D11 23
22 Vcc
Function
I/O
Address input
I
I Address input
I Address input
Address input
I
Address input
I
Address input
I
I Address input
I
Address input
I
Address input
I Address input
I
Chip enable
- Connect to GND
Output enable
O
O Data output
O Data output
O Data output
O Data output
O Data output
O
Data output
O
Data output
O Data output
Pin No . Symbol
I/O
23
VCC
24
D4 O
25
D12 O
26
D5 O
27
D13 O
28 O
D6
29
D14 O
30
D7 O
31
A0/D15
I/O
32 VSS
33 BYTE
34 A17
35 A16
36 A15
37 A14
38 A13
39 A12
40 A11
41 A10
42 A9
43 A20
44 WP
Function
Power supply
-
Data output
Data output
Data output
Data output
Data output
Data output
Data output
Data output/address input
Connect to GND
-
Mode switch
I
I Address input
I Address input
I Address input
Address input
I
Address input
I
I Address input
I Address input
I Address input
I Address input
Address input
I