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ECC SIMM and show

2017-08-03 21:55  
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This article describes the SIMM with ECC show. The circuit is very simple but effective utility, worth Duokanjibian then master the principles of this principle. SIMM = Single Inline Memory Module.ECC=Error Correcting Code. 72 pin SIMM

72 pin SIMM?connector? at the computer

 

PinECCOptimizedDescription
1VSSVSSGround
2DQ0DQ0Data 0
3DQ1DQ1Data 1
4DQ2DQ2Data 2
5DQ3DQ3Data 3
6DQ4DQ4Data 4
7DQ5DQ5Data 5
8DQ6DQ6Data 6
9DQ7DQ7Data 7
10VCCVCC5 VDC
11PD5PD5Presence Detect 5
12A0A0Address 0
13A1A1Address 1
14A2A2Address 2
15A3A3Address 3
16A4A4Address 4
17A5A5Address 5
18A6A6Address 6
19n/cn/cNot connected
20DQ8DQ8Data 8
21DQ9DQ9Data 9
22DQ10DQ10Data 10
23DQ11DQ11Data 11
24DQ12DQ12Data 12
25DQ13DQ13Data 13
26DQ14DQ14Data 14
27DQ15DQ15Data 15
28A7A7Address 7
29DQ16DQ16Data 16
30VCCVCC5 VDC
31A8A8Address 8
32A9A9Address 9
33n/cn/cNot connected
34/RAS1/RAS1Row Address Strobe 1
35DQ17DQ17Data 17
36DQ18DQ18Data 18
37DQ19DQ19Data 19
38DQ20DQ20Data 20
39VSSVSSGround
40/CAS0/CAS0Column Address Strobe 0
41A10A10Address 10
42A11A11Address 11
43/CAS1/CAS1Column Address Strobe 1
44/RAS0/RAS0Row Address Strobe 0
45/RAS1/RAS1Row Address Strobe 1
46DQ21DQ21Data 21
47/WE/WERead/Write
48/ECC/ECC 
49DQ22DQ22Data 22
50DQ23DQ23Data 23
51DQ24DQ24Data 24
52DQ25DQ25Data 25
53DQ26DQ26Data 26
54DQ27DQ27Data 27
55DQ28DQ28Data 28
56DQ29DQ29Data 29
57DQ30DQ30Data 30
58DQ31DQ31Data 31
59VCCVCC5 VDC
60DQ32DQ32Data 32
61DQ33DQ33Data 33
62DQ34DQ34Data 34
63DQ35DQ35Data 35
64n/cDQ36Data 36
65n/cDQ37Data 37
66n/cDQ38Data 38
67PD1PD1Presence Detect 1
68PD2PD2Presence Detect 2
69PD3PD3Presence Detect 3
70PD4PD4Presence Detect 4
71n/cDQ39Data 39
72VSSVSSGround

 


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http://circuits.radio-electronics.co/computer-electronics/simm-with-ecc-72-pin/