Table B33. SIMM Device Pin Assignments
| PinNumber | SignalMnemonic | Signal Name and Description |
1 | GND | Ground |
2 | DQ0 | Data I/O (bit 0) |
3 | DQ18 | Data I/O (bit 18) |
4 | DQ1 | Data I/O (bit 1) |
5 | DQ19 | Data I/O (bit 19) |
6 | DQ2 | Data I/O (bit 2) |
7 | DQ20 | Data I/O (bit 20) |
8 | DQ3 | Data I/O (bit 3) |
9 | DQ21 | Data I/O (bit 21) |
10 | +5V DC | +5 volts DC |
11 | NC | Not connected |
12 | A0 | Address bus (bit 0) |
13 | A1 | Address bus (bit 1) |
14 | A2 | Address bus (bit 2) |
15 | A3 | Address bus (bit 3) |
16 | A4 | Address bus (bit 4) |
17 | A5 | Address bus (bit 5) |
18 | A6 | Address bus (bit 6) |
19 | A10 | Address bus (bit 10) |
20 | DQ4 | Data I/O (bit 4) |
21 | DQ22 | Data I/O (bit 22) |
22 | DQ5 | Data I/O (bit 5) |
23 | DQ23 | Data I/O (bit 23) |
24 | DQ6 | Data I/O (bit 6) |
25 | DQ24 | Data I/O (bit 24) |
26 | DQ7 | Data I/O (bit 7) |
27 | DQ25 | Data I/O (bit 25) |
28 | A7 | Address bus (bit 7) |
29 | A11 | Address bus (bit 11) |
30 | +5V DC | +5 volts DC |
31 | A8 | Address bus (bit 8) |
32 | A9 | Address bus (bit 9) |
33 | RAS3* | Row address strobe 3 |
34 | RAS2* | Row address strobe 2 |
35 | DQ26 | Data I/O (bit 26) |
36 | DQ8 | Data I/O (bit 8) |
37 | DQ17 | Data I/O (bit 17) |
38 | DQ35 | Data I/O (bit 35) |
39 | GND | Ground |
40 | CAS0* | Column address strobe 0 |
41 | CAS2* | Column address strobe 2 |
42 | CAS3* | Column address strobe 3 |
43 | CAS1* | Column address strobe 1 |
44 | RAS0* | Row address strobe 0 |
45 | RAS1* | Row address strobe 1 |
46 | NC | Not connected |
47 | WE* | Write enable |
48 | NC | Not connected |
49 | DQ9 | Data I/O (bit 9) |
50 | DQ27 | Data I/O (bit 27) |
51 | DQ10 | Data I/O (bit 10) |
52 | DQ28 | Data I/O (bit 28) |
53 | DQ11 | Data I/O (bit 11) |
54 | DQ29 | Data I/O (bit 29) |
55 | DQ12 | Data I/O (bit 12) |
56 | DQ30 | Data I/O (bit 30) |
57 | DQ13 | Data I/O (bit 13) |
58 | DQ31 | Data I/O (bit 31) |
59 | +5V DC | +5 volts DC |
60 | DQ32 | Data I/O (bit 32) |
61 | DQ14 | Data I/O (bit 14) |
62 | DQ33 | Data I/O (bit 33) |
63 | DQ15 | Data I/O (bit 15) |
64 | DQ34 | Data I/O (bit 34) |
65 | DQ16 | Data I/O (bit 16) |
66 | NC | Not connected |
67 | PD1 | Presence detect 1 (SIMM type/speed information) |
68 | PD2 | Presence detect 2 (SIMM type/speed information) |
69 | PD3 | Presence detect 3 (SIMM type/speed information) |
70 | PD4 | Presence detect 4 (SIMM type/speed information) |
71 | NC | Not connected |
72 | GND | Ground |