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	DQ28	Data 28
59	VCC	VCC	+5 VDC
60	DQ29	DQ29	Data 29
61	DQ13	DQ13	Data 13
62	DQ30	DQ30	Data 30
63	DQ14	DQ14	Data 14
64	DQ31	DQ31	Data 31
65	DQ16	DQ16	Data 16
66	Not connected	Not connected	Not connected
67	PD1	PD1	Presence Detect 1
68	PD2	PD2	Presence Detect 2
69	PD3	PD3	Presence Detect 3
70	PD4	PD4	Presence Detect 4
71	Not connected	Not connected	Not connected
72	VSS	VSS	Ground

Pinouts for 168-pin DIMM

SIDE ONE

*Pin*	*Parity*	*NonParity*	*72bit*	*80bit*	*Description*
1	VSS	VSS	VSS	VSS	Ground
2	DQ0	DQ0	DQ0	DQ0	Data 0
3	DQ1	DQ1	DQ1	DQ1	Data 1
4	DQ2	DQ2	DQ2	DQ2	Data 2
5	DQ3	DQ3	DQ3	DQ3	Data 3
6	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
7	DQ4	DQ4	DQ4	DQ4	Data 4
8	DQ5	DQ5	DQ5	DQ5	Data 5
9	DQ6	DQ6	DQ6	DQ6	Data 6
10	DQ7	DQ7	DQ7	DQ7	Data 7
11	DQ8	DQ8	DQ8	DQ8	Data 8
12	VSS	VSS	VSS	VSS	Ground
13	DQ9	DQ9	DQ9	DQ9	Data 9
14	DQ10	DQ10	DQ10	DQ10	Data 10
15	DQ11	DQ11	DQ11	DQ11	Data 11
16	DQ12	DQ12	DQ12	DQ12	Data 12
17	DQ13	DQ13	DQ13	DQ13	Data 13
18	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
19	DQ14	DQ14	DQ14	DQ14	Data 14
20	DQ15	DQ15	DQ15	DQ15	Data 15
21	CB0	Not Connected	CB0	CB0	Parity Check Bit or Input/Output 0
22	CB1	Not Connected	CB1	CB1	Parity Check Bit or Input/Output 1
23	VSS	VSS	VSS	VSS	Ground
24	Not Connected	Not Connected	Not Connected	CB8	Parity Check Bit or Input/Output 8
25	Not Connected	Not Connected	Not Connected	CB9	Parity Check Bit or Input/Output 9
26	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
27	WE0	WE0	WE0	WE0	Read Write Input
28	CAS0	CAS0	CAS0	CAS0	Column Address Strobe 0
29	CAS1	CAS1	CAS1	CAS1	Column Address Strobe 1
30	RAS0	RAS0	RAS0	RAS0	Row Address Strobe 0
31	OE0	OE0	OE0	OE0	Output Enable
32	VSS	VSS	VSS	VSS	Ground
33	A0	A0	A0	A0	Address 0
34	A2	A2	A2	A2	Address 2
35	A4	A4	A4	A4	Address 4
36	A6	A6	A6	A6	Address 6
37	A8	A8	A8	A8	Address 8
38	A10	A10	A10	A10	Address 10
39	A12	A12	A12	A12	Address 12
40	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
41	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
42	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
43	VSS	VSS	VSS	VSS	Ground
44	OE2	OE2	OE2	OE2
45	RAS2	RAS2	RAS2	RAS2	Row Address Strobe 2
46	CAS2	CAS2	CAS2	CAS2	Column Address Strobe 2
47	CAS3	CAS3	CAS3	CAS3	Column Address Strobe 3
48	WE2	WE2	WE2	WE2	Read Write Input
49	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
50	Not Connected	Not Connected	Not Connected	CB10	Parity Check Bit or Input/Output 10
51	Not Connected	Not Connected	Not Connected	CB11	Parity Check Bit or Input/Output 11
52	CB2	Not Connected	CB2	CB2	Parity Check Bit or Input/Output 2
53	CB3	Not Connected	CB3	CB3	Parity Check Bit or Input/Output 3
54	VSS	VSS	VSS	VSS	Ground
55	DQ16	DQ16	DQ16	DQ16	Data 16
56	DQ17	DQ17	DQ17	DQ17	Data 17
57	DQ18	DQ18	DQ18	DQ18	Data 18
58	DQ19	DQ19	DQ19	DQ19	Data 19
59	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
60	DQ20	DQ20	DQ20	DQ20	Data 20
61	Not Connected	Not Connected	Not Connected	Not Connected	Not connected
62	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
63	Not Connected	Not Connected	Not Connected	Not Connected	Not connected
64	VSS	VSS	VSS	VSS	Ground
65	DQ21	DQ21	DQ21	DQ21	Data 21
66	DQ22	DQ22	DQ22	DQ22	Data 22
67	DQ23	DQ23	DQ23	DQ23	Data 23
68	VSS	VSS	VSS	VSS	Ground
69	DQ24	DQ24	DQ24	DQ24	Data 24
70	DQ25	DQ25	DQ25	DQ25	Data 25
71	DQ26	DQ26	DQ26	DQ26	Data 26
72	DQ27	DQ27	DQ27	DQ27	Data 27
73	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
74	DQ28	DQ28	DQ28	DQ28	Data 28
75	DQ29	DQ29	DQ29	DQ29	Data 29
76	DQ30	DQ30	DQ30	DQ30	Data 30
77	DQ31	DQ31	DQ31	DQ31	Data 31
78	VSS	VSS	VSS	VSS	Ground
79	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
80	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
81	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
82	SDA	SDA	SDA	SDA	Serial Data
83	SCL	SCL	SCL	SCL	Serial Clock
84	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC

SIDE TWO

*Pin*	*Parity*	*Non-Parity*	*72-bit ECC*	*80-bit ECC*	*Description*
85	VSS	VSS	VSS	VSS	Ground
86	DQ32	DQ32	DQ32	DQ32	Data 32
87	DQ33	DQ33	DQ33	DQ33	Data 33
88	DQ34	DQ34	DQ34	DQ34	Data 34
89	DQ35	DQ35	DQ35	DQ35	Data 35
90	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
91	DQ36	DQ36	DQ36	DQ36	Data 36
92	DQ37	DQ37	DQ37	DQ37	Data 37
93	DQ38	DQ38	DQ38	DQ38	Data 38
94	DQ39	DQ39	DQ39	DQ39	Data 39
95	DQ40	DQ40	DQ40	DQ40	Data 40
96	VSS	VSS	VSS	VSS	Ground
97	DQ41	DQ41	DQ41	DQ41	Data 41
98	DQ42	DQ42	DQ42	DQ42	Data 42
99	DQ43	DQ43	DQ43	DQ43	Data 43
100	DQ44	DQ44	DQ44	DQ44	Data 44
101	DQ45	DQ45	DQ45	DQ45	Data 45
102	VCC	VCC	VCC	VCC	+5VDC o r+3.3VDC
103	DQ46	DQ46	DQ46	DQ46	Data 46
104	DQ47	DQ47	DQ47	DQ47	Data 47
105	CB4	Not Connected	CB4	CB4	Parity Check Bit or Input/Output 4
106	CB5	Not Connected	CB5	CB5	Parity Check Bit or Input/Output 5
107	VSS	VSS	VSS	VSS	Ground
108	Not Connected	Not Connected	Not Connected	CB12	Parity Check Bit or Input/Output 12
109	Not Connected	Not Connected	Not Connected	CB13	Parity Check Bit or Input/Output 13
110	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
111	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
112	CAS4	CAS4	CAS4	CAS4	ColumnAddressStrobe4
113	CAS5	CAS5	CAS5	CAS5	ColumnAddressStrobe5
114	RAS1	RAS1	RAS1	RAS1	Row Address Strobe 1
115	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
116	VSS	VSS	VSS	VSS	Ground
117	A1	A1	A1	A1	Address 1
118	A3	A3	A3	A3	Address 3
119	A5	A5	A5	A5	Address 5
120	A7	A7	A7	A7	Address 7
121	A9	A9	A9	A9	Address 9
122	A11	A11	A11	A11	Address 11
123	A13	A13	A13	A13	Address 13
124	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
125	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
126	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
127	VSS	VSS	VSS	VSS	Ground
128	Not Connected	D Not Connected	Not Connected	Not Connected	Not Connected
129	RAS3	RAS3	RAS3	RAS3	Column Address Strobe 3
130	CAS6	CAS6	CAS6	CAS6	Column Address Strobe 6
131	CAS7	CAS7	CAS7	CAS7	Column Address Strobe 7
132	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
133	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
134	Not Connected	Not Connected	Not Connected	CB14	Parity Check Bit or Input/Output 14
135	Not Connected	Not Connected	Not Connected	CB15	Parity Check Bit or Input/Output 15
136	CB6	Not Connected	CB6	CB6	Parity Check Bit or Input/Output 6
137	CB7	Not Connected	CB7	CB7	Parity Check Bit or Input/Output 7
138	VSS	VSS	VSS	VSS	Ground
139	DQ48	DQ48	DQ48	DQ48	Data 48
140	DQ49	DQ49	DQ49	DQ49	Data 49
141	DQ50	DQ50	DQ50	DQ50	Data 50
142	DQ51	DQ51	DQ51	DQ51	Data 51
143	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
144	DQ52	DQ52	DQ52	DQ52	Data 52
145	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
146	Not Connected	Not Connected	Not Connected	Not Connected	Not Connected
147	Not Connected	Not Connected	Not Connected	Not Connected	Notconnected
148	VSS	VSS	VSS	VSS	Ground
149	DQ53	DQ53	DQ53	DQ53	Data 53
150	DQ54	DQ54	DQ54	DQ54	Data 54
151	DQ55	DQ55	DQ55	DQ55	Data 55
152	VSS	VSS	VSS	VSS	Ground
153	DQ56	DQ56	DQ56	DQ56	Data 56
154	DQ57	DQ57	DQ57	DQ57	Data 57
155	DQ58	DQ58	DQ58	DQ58	Data 58
156	DQ59	DQ59	DQ59	DQ59	Data 59
157	VCC	VCC	VCC	VCC	+5VDC or +3.3VDC
158	DQ60	DQ60	DQ60	DQ60	Data 60
159	DQ61	DQ61	DQ61	DQ61	Data 61
160	DQ62	DQ62	DQ62	DQ62	Data 62
161	DQ63	DQ63