144 pin EDO SODIMM Memory Module Pinout

[144-Pin SODIMM] [144-Pin EDO SODIMM]
[72-Pin EDO SODIMM]

Personal Computer Memory Module description, 144 pin EDO SODIMM Pin out. The 144-pin SODIMM have 72 pins per PWB side.
The table could be misleading because it's in one column; the PWB pinout for the Front side are the odd pins 1 to pin# 143.
The back side [reverse side on the board] pinout are the even pins from 2 to pin 144. Most or all of the IC's are on the front side.
EDO SODIMM memory modules would be found in portable Computers; Laptops, Notebooks, Mobile Workstations or embedded applications.

**144-Pin EDO SODIMM PinOut**
Pin Number	Normal name	Pin Description
1	VSS	Ground
2	VSS	Ground
3	DQ0	Data 0
4	DQ32	Data 32
5	DQ1	Data 1
6	DQ33	Data 33
7	DQ2	Data 2
8	DQ34	Data 34
9	DQ3	Data 3
10	DQ35	Data 35
11	VCC	+3.3 VDC
12	VCC	+3.3 VDC
13	DQ4	Data 4
14	DQ36	Data 36
15	DQ5	Data 5
16	DQ37	Data 37
17	DQ6	Data 6
18	DQ38	Data 38
19	DQ7	Data 7
20	DQ39	Data 39
21	VSS	Ground
22	VSS	Ground
23	/CAS0	Column Address Strobe 0
24	/CAS4	Column Address Strobe 4
25	/CAS1	Column Address Strobe 1
26	/CAS5	Column Address Strobe 5
27	VCC	+3.3 VDC
28	VCC	+3.3 VDC
29	A0	Address 0
30	A3	Address 3
31	A1	Address 1
32	A4	Address 4
33	A2	Address 2
34	A5	Address 5
35	VSS	Ground
36	VSS	Ground
37	DQ8	Data 8
38	DQ40	Data 40
39	DQ9	Data 9
40	DQ41	Data 41
41	DQ10	Data 10
42	DQ42	Data 42
43	DQ11	Data 11
44	DQ43	Data 43
45	VCC	+3.3 VDC
46	VCC	+3.3 VDC
47	DQ12	Data 12
48	DQ44	Data 44
49	DQ13	Data 13
50	DQ45	Data 45
51	DQ14	Data 14
52	DQ46	Data 46
53	DQ15	Data 15
54	DQ47	Data 47
55	VSS	Ground
56	VSS	Ground
57	RSVD	Reserved
58	RSVD	Reserved
59	RSVD	Reserved
60	RSVD	Reserved
61	RFU	Reserved for Future Use
62	RFU	Reserved for Future Use
63	VCC	+3.3 VDC
64	VCC	+3.3 VDC
65	RFU	Reserved for Future Use
66	RFU	Reserved for Future Use
67	/WE	Read/Write
68	RFU	Reserved for Future Use
69	/RAS0	Row Address Strobe 0
70	RFU	Reserved for Future Use
71	/RAS1	Row Address Strobe 1
72	RFU	Reserved for Future Use
73	OE	Output Enable
74	RFU	Reserved for Future Use
75	VSS	Ground
76	VSS	Ground
77	RSVD	Reserved
78	RSVD	Reserved
79	RSVD	Reserved
80	RSVD	Reserved
81	VCC	+3.3 VDC
82	VCC	+3.3 VDC
83	DQ16	Data 16
84	DQ48	Data 48
85	DQ17	Data 17
86	DQ49	Data 49
87	DQ18	Data 18
88	DQ50	Data 50
89	DQ19	Data 19
90	DQ51	Data 51
91	VSS	Ground
92	VSS	Ground
93	DQ20	Data 20
94	DQ52	Data 52
95	DQ21	Data 21
96	DQ53	Data 53
97	DQ22	Data 22
98	DQ54	Data 54
99	DQ23	Data 23
100	DQ55	Data 55
101	VCC	+3.3 VDC
102	VCC	+3.3 VDC
103	A6	Address 6
104	A7	Address 7
105	A8	Address 8
106	A11	Address 11
107	VSS	Ground
108	VSS	Ground
109	A9	Address 9
110	NC	No Connect
111	A10	Address 10
112	NC	No Connect
113	VCC	+3.3 VDC
114	VCC	+3.3 VDC
115	CAS2	-
116	CAS6	-
117	CAS3	-
118	CAS7	-
119	VSS	Ground
120	VSS	Ground
121	DQ24	Data 24
122	DQ56	Data 56
123	DQ25	Data 25
124	DQ57	Data 57
125	DQ26	Data 26
126	DQ58	Data 58
127	DQ27	Data 27
128	DQ59	Data 59
129	VCC	+3.3 VDC
130	VCC	+3.3 VDC
131	DQ28	Data 28
132	DQ60	Data 60
133	DQ29	Data 29
134	DQ61	Data 61
135	DQ30	Data 30
136	DQ62	Data 62
137	DQ31	Data 31
138	DQ63	Data 63
139	VSS	Ground
140	VSS	Ground
141	SDA	Serial Data Line
142	SCL	Serial Clock Line
143	VCC	+3.3 VDC
144	VCC	+3.3 VDC

Data width is 64 bits per memory module, the front side 72 pins are not connected together with the back side 72 pins.
Note the table indicates pins that are reserved as of the time the table was produced, never used a pin designated as reserved.

72-pin SODIMM Memory Module picture used to represent a 144-pin

The approximate PWB size. 2.625" x 1.0"

Memory Module Acronyms
SIMM: Single Inline Memory Module
DRAM: Dynamic Random Access Memory
SO DIMM: Small Outline Dual Inline Memory Module
EDO: Extended Data Out: (asynchronous) A superset of FPM, just faster than FPM.
The 144 pin SODIMMs have an alignment notch on the bottom [left] center side.
All 144 pin SODIMM's use either EDO, 66MHz SDRAM, PC100 SDRAM, or PC133 SDRAM memory.
This page provides pinout details for EDO SODIMM SDRAM modules.

This Memory Module device use LVTTL [3.3 volt] compatible IC's.

**Example Memory Speed and Size**
Memory Module Speed	Size / Capacity	Style / Description
EDO SODIMM	32MB	4Mx64 Bits
EDO SODIMM	64MB	8Mx64 Bits
EDO SODIMM	128MB	16Mx64 Bits

Back to the main Computer Memory Modules information page for a description of memory stick types and module speed.
For electronic device manufacturers see one of these pages: Memory IC manufacturers, or Memory Module manufacturers
Electronic Equipment manufacturers are found by selecting the OEM Equipment icon below, component manufacturers by selecting the Components icon below.

Navigation: Engineering Home > OEM Equipment Vendors > Computer Gear > Memory Modules > Memory Module Pinout > 144 pin SODIMM.


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