Pinouts of Common Components

Pinouts of Common Components

30-pin SIMM	184-pin DIMM	Floppy Disk (NMS)	16-bit ISA
72-pin SIMM	144-pin SO-DIMM	Serial Cable	32-bit PCI
168-pin DIMM	Floppy Disk (MS)	8-bit ISA (PC Bus)	64-bit PCI

Pinouts for 30-pin SIMM

*Pin Number*	*Pin Name*	*Description*
1	VCC	+5VDC
2	/CAS	Column Address Strobe
3	DQ0	Data 0
4	A0	Address 0
5	A1	Address 1
6	DQ1	Data 1
7	A2	Address 2
8	A3	Address 3
9	GND	Ground
10	DQ2	Data 2
11	A4	Address 4
12	A5	Address 5
13	DQ3	Data 3
14	A6	Address 6
15	A7	Address 7
16	DQ4	Data 4
17	A8	Address 8
18	A9	Address 9
19	A10	Address 10
20	DQ5	Data 5
21	/WE	Write Enable
22	GND	Ground
23	DQ6	Data 6
24	A11	Address 11
25	DQ7	Data 7
26	QP	Data Parity Out
27	/RAS	Row Address Strobe
28	/CASP	Parity Bit Column Access Strobe
29	DP	Data Parity In
30	VDC	+5VDC

Pinouts for 72-pin SIMM

*Pin Number*	*Pin Name (Non-parity)*	*Pin Name (Parity)*	*Description*
1	VSS	VSS	Ground
2	DQ0	DQ0	Data 0
3	DQ16	DQ16	Data 16
4	DQ1	DQ1	Data 1
5	DQ17	DQ17	Data 17
6	DQ2	DQ2	Data 2
7	DQ18	DQ18	Data 18
8	DQ3	DQ3	Data 3
9	DQ19	DQ19	Data 19
10	VCC	VCC	+5VDC
11	Not connected	Not connected	Not connected
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	DQ4	DQ4	Data 4
21	DQ20	DQ20	Data 20
22	DQ5	DQ5	Data 5
23	DQ21	DQ21	Data 21
24	DQ6	DQ6	Data 6
25	DQ22	DQ22	Data 22
26	DQ7	DQ7	Data 7
27	DQ23	DQ23	Data 23
28	A7	A7	Address 7
29	A11	A11	Address 11
30	VCC	VCC	+5VDC
31	A8	A8	Address 8
32	A9	A9	Address 9
33	RAS 3	RAS 3	Row Address Strobe 3
34	RAS 2	RAS 2	Row Address Strobe 2
35	Not connected	PQ3	Parity bit 3
36	Not connected	PQ1	Parity bit 1
37	Not connected	PQ2	Parity bit 2
38	Not connected	PQ4	Parity bit 4
39	VSS	VSS	Ground
40	CAS 0	CAS 0	Column Address Strobe 0
41	CAS 2	CAS 2	Column Address Strobe 2
42	CAS 3	CAS 3	Column Address Strobe 3
43	CAS 1	CAS 1	Column Address Strobe 1
44	RAS 0	RAS 0	Row Address Strobe 0
45	RAS 1	RAS 1	Row Address Strobe 1
46	Not connected	Not connected	Not connected
47	WE	WE	Read/Write
48	Not connected	Not connected	Not connected
49	DQ8	DQ8	Data 8
50	DQ24	DQ24	Data 24
51	DQ9	DQ9	Data 9
52	DQ25	DQ25	Data 25
53	DQ10	DQ10	Data 10
54	DQ26	DQ26	Data 26
55	DQ11	DQ11	Data 11
56	DQ27	DQ27	Data 27
57	DQ12	DQ12	Data 12
58	DQ28	DQ2