Oki B4500 Maintenance Manual page 94

• RAM_DIMM Connector Pin Assignment
Pin No. I/O*
01 C
01
02
02
03
03
04
04
05
05
06
06
07
07
08
08
09
09
10 O
10
11 11
12
12
13
13
14
14
15 C
15
16 C
16
17
17
18
18
19
19
20
20
21
21
22 O
22
23
23
24 O
24
25 O
25
26 O
26
27 C
27
28 C
28
29 O
29
30 O
30
31 O
31
32 O
32
33 O
33
34 O
34
35 O
35
36 O
36
* O : Out
I : In
C : Common
43502101TH Rev.1
Signal Function
SG Ground
NC N.C.
NC N.C.
NC N.C.
NC N.C.
NC N.C.
NC N.C.
NC N.C.
NC N.C.
+3.3V +3.3V
NC N.C.
NC N.C.
NC N.C.
NC N.C.
SG Ground
SG Ground
NC N.C.
NC N.C.
PERIRD-N N.C.
NC N.C.
NC N.C.
Chip select 2
RAM_CS2-N
NC N.C.
SAD3 Address Bus 3
RAM_CLK1 Clock
SAD2 Address Bus 2
SG Ground
SG Ground
SAD4 Address Bus 4
+3.3V +3.3v
SAD5 Address Bus 5
SAD1 Address Bus 1
SAD6 Address Bus 6
SAD0 Address Bus 0
SAD7 Address Bus 7
SAD10 Address Bus 10
Pin No. I/O*
37 O
37
38 O
38
39 C
39
40 C
40
41 O
41
42 O
42
43 O
43
44 O
44
45
45
46 O
46
47 47 O
48 C
48
49 O
49
50 O
50
51 O
51
52 O
52
53 I/O
53
54 O
54
55 I/O
55
56 I/O
56
57 I/O
57
58 I/O
58
59 I/O
59
60 I/O
60
61 O
61
62 I/O
62
63 I/O
63
64 I/O
64
65 I/O
65
66 I/O
66
67 I/O
67
68 I/O
68
69 I/O
69
70 I/O
70
71 I
71
72 C
72
Oki Data CONFIDENTIAL
Signal Function
SAD8 Address Bus 8
SAD13 Address Bus 13
SG Ground
SG Ground
SAD9 Address Bus 9
SAD12 Address Bus 12
SAD11 Address Bus 11
RAM_CS1-N Chip select 1
PERIWR-N Address Bus 14
RAM_RAS-N Row Address
RAM_CKE-N Clock Enable
SG Ground
RAM_CLK1 Clock
RAM_CAS-N
Column Address Strobe
RAM_DQM1 Byte Enable 1
RAM_WE-N Write Enable
SDT8 Data Bus 8
RAM_DQM0 Write Enable 0
SDT9 Data Bus 9
SDT7 Data Bus 7
SDT10 Data Bus 10
SDT6 Data Bus 6
SDT11 Data Bus 11
SDT5 Data Bus 5
+3.3V +3.3v
SDT4 Data Bus 4
SDT12 Data Bus 12
SDT3 Data Bus 3
SDT13 Data Bus 13
SDT2 Data Bus 2
SDT14 Data Bus 14
SDT1 Data Bus 1
SDT15 Data Bus 15
SDT0 Data Bus 0
OPRAM-N RAM-DIMM Detect
SG Ground
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