# 72 pin SO DIMM

SO DIMM=Small Outline Dual Inline Memory Module

(at the computer)

72 PIN SO DIMM at the computer.

Pin | Non-Parity | Parity | Description
--- | --- | --- | ---
1 | VSS | VSS | Ground
2 | DQ0 | DQ0 | Data 0
3 | DQ1 | DQ1 | Data 1
4 | DQ2 | DQ2 | Data 2
5 | DQ3 | DQ3 | Data 3
6 | DQ4 | DQ4 | Data 4
7 | DQ5 | DQ5 | Data 5
8 | DQ6 | DQ6 | Data 6
9 | DQ7 | DQ7 | Data 7
10 | VCC | VCC | +5 VDC
11 | PD1 | PD1 | Presence Detect 1
12 | A0 | A0 | Address 0
13 | A1 | A1 | Address 1
14 | A2 | A2 | Address 2
15 | A3 | A3 | Address 3
16 | A4 | A4 | Address 4
17 | A5 | A5 | Address 5
18 | A6 | A6 | Address 6
19 | A10 | A10 | Address 10
20 | n/c | PQ8 | Data 8 (Parity 1)
21 | DQ9 | DQ9 | Data 9
22 | DQ10 | DQ10 | Data 10
23 | DQ11 | DQ11 | Data 11
24 | DQ12 | DQ12 | Data 12
25 | DQ13 | DQ13 | Data 13
26 | DQ14 | DQ14 | Data 14
27 | DQ15 | DQ15 | Data 15
28 | A7 | A7 | Address 7
29 | A11 | A11 | Address 11
30 | VCC | VCC | +5 VDC
31 | A8 | A8 | Address 8
32 | A9 | A9 | Address 9
33 | /RAS3 | RAS3 | Row Address Strobe 3
34 | /RAS2 | RAS2 | Row Address Strobe 2
35 | DQ16 | DQ16 | Data 16
36 | n/c | PQ17 | Data 17 (Parity 2)
37 | DQ18 | DQ18 | Data 18
38 | DQ19 | DQ19 | Data 19
39 | VSS | VSS | Ground
40 | /CAS0 | CAS0 | Column Address Strobe 0
41 | /CAS2 | CAS2 | Column Address Strobe 2
42 | /CAS3 | CAS3 | Column Address Strobe 3
43 | /CAS1 | CAS1 | Column Address Strobe 1
44 | /RAS0 | RAS0 | Row Address Strobe 0
45 | /RAS1 | RAS1 | Row Address Strobe 1
46 | A12 | A12 | Address 12
47 | /WE | WE | Read/Write
48 | A13 | A13 | Address 13
49 | DQ20 | DQ20 | Data 20
50 | DQ21 | DQ21 | Data 21
51 | DQ22 | DQ22 | Data 22
52 | DQ23 | DQ23 | Data 23
53 | DQ24 | DQ24 | Data 24
54 | DQ25 | DQ25 | Data 25
55 | n/c | PQ26 | Data 26 (Parity 3)
56 | DQ27 | DQ27 | Data 27
57 | DQ28 | DQ28 | Data 28
58 | DQ29 | DQ29 | Data 29
59 | DQ31 | DQ31 | Data 31
60 | DQ30 | DQ30 | Data 30
61 | VCC | VCC | +5 VDC
62 | DQ32 | DQ32 | Data 32
63 | DQ33 | DQ33 | Data 33
64 | DQ34 | DQ34 | Data 34
65 | n/c | PQ35 | Data 35 (Parity 4)
66 | PD2 | PD2 | Presence Detect 2
67 | PD3 | PD3 | Presence Detect 3
68 | PD4 | PD4 | Presence Detect 4
69 | PD5 | PD5 | Presence Detect 1
70 | PD6 | PD6 | Presence Detect 6
71 | PD7 | PD7 | Presence Detect 7
72 | VSS | VSS | Ground

Contributor: | Joakim Ögren, Mark Brown, Jim Burd

Source: | Various productsheets at IBM Memory Products

Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10