Pioneer PDP-504CMX, Service Manual

Page: 176 / 191

PDP-504CMX/1
176
1 2 3 4
1 2 3 4
C
D
F
A
B
E
No. Pin Name I/O Pin Function No. Pin Name I/O Pin Function
1 VDD
−
Power supply 44 VSS
−
Ground
2 DQ0 I/O Data input/output 45 DQ24 I/O Data input/output
3 VDDQ
−
Power supply for output buffer
46 VSSQ
−
Ground for output buffer
4 DQ1 I/O Data input/output 47 DQ25 I/O Data input/output
5 DQ2 I/O Data input/output 48 DQ26 I/O Data input/output
6 VSSQ
−
Ground for output buffer 49 VDDQ
−
Power supply for output buffer
7 DQ3 I/O Data input/output 50 DQ27 I/O Data input/output
8 DQ4 I/O Data input/output 51 DQ28 I/O Data input/output
9 VDDQ
−
Power supply for output buffer 52 VSSQ
−
Ground for output buffer
10 DQ5 I/O Data input/output 53 DQ29 I/O Data input/output
11 DQ6 I/O Data input/output 54 DQ30 I/O Data input/output
12 VSSQ
−
Ground for output buffer 55 VDDQ
−
Power supply for output buffer
13 DQ7 I/O Data input/output 56 DQ31 I/O Data input/output
14 NC
−
No connection 57 NC
−
No connection
15 VDD
−
Power supply 58 VSS
−
Ground
16 DQM0 I
Data input/output mask
59 DQM3 I
Data input/output mask
17 /WE I Write enable 60 A3 I Address input
18 /CAS I Column address strobe 61 A4 I Address input
19 /RAS I Row address strobe 62 A5 I Address input
20 /CS I Chip select input 63 A6 I Address input
21 NC
−
No connection 64 A7 I Address input
22 BA0 I Bank address input 65 A8 I Address input
23 BA1 I Bank address input 66 A9 I Address input
24 A10/AP I
Address input
67 CKE I
Clock enable
25 A0 I Address input 68 CLK I System clock input
26 A1 I Address input 69 NC
−
No connection
27 A2 I Address input 70 NC
−
No connection
28 DQM2 I Data input/output mask 71 DQM1 I Data input/output mask
29 VDD
−
Power supply
72 VSS
−
Ground
30 NC
−
No connection 73 NC
−
No connection
31 DQ16 I/O Data input/output 74 DQ8 I/O Data input/output
32 VSSQ
−
Ground for output buffer 75 VDDQ
−
Power supply for output buffer
33 DQ17 I/O Data input/output 76 DQ9 I/O Data input/output
34 DQ18 I/O Data input/output 77 DQ10 I/O Data input/output
35 VDDQ
−
Power supply for output buffer 78 VSSQ
−
Ground for output buffer
36 DQ19 I/O Data input/output 79 DQ11 I/O Data input/output
37 DQ20 I/O Data input/output 80 DQ12 I/O Data input/output
38 VSSQ
−
Ground for output buffer 81 VDDQ
−
Power supply for output buffer
39 DQ21 I/O Data input/output 82 DQ13 I/O Data input/output
40 DQ22 I/O Data input/output 83 DQ14 I/O Data input/output
41 VDDQ
−
Power supply for output buffer 84 VSSQ
−
Ground for output buffer
42 DQ23 I/O Data input/output 85 DQ15 I/O Data input/output
43 VDD
−
Power supply 86 VSS
−
Ground
Pin Function