IBM PC 300GL User Manual download pdf (Page 46)

Appendix A. Connector pin assignments 39

54 GND N/A 138 GND N/A

55 MD16 I/O 139 MD48 I/O

56 MD17 I/O 140 MD49 I/O

57 MD18 I/O 141 MD50 I/O

58 MD19 I/O 142 MD51 I/O

59 VDD N/A 143 VDD N/A

60 MD20 I/O 144 MD52 I/O

61 CKE1 N/A 145 NC N/A

62 VREF N/A 146 VREF N/A

63 (CKE1)* N/A 147 NC N/A

64 GND N/A 148 GND N/A

65 MD21 I/O 149 MD53 I/O

66 MD22 I/O 150 MD54 I/O

67 MD23 I/O 151 MD55 I/O

68 GND N/A 152 GND N/A

69 MD24 I/O 153 MD56 I/O

70 MD25 I/O 154 MD57 I/O

71 MD26 I/O 155 MD58 I/O

72 MD27 I/O 156 MD59 I/O

73 VDD N/A 157 VDD N/A

74 MD28 I/O 158 MD60 I/O

75 MD29 I/O 159 MD61 I/O

76 MD30 I/O 160 MD62 I/O

77 MD31 I/O 161 MD63 I/O

78 GND N/A 162 GND N/A

79 CK2 O 163 CK3 O

80 NC N/A 164 NC N/A

81 NC O 165 SA0 O

82 SDA O 166 SA1 O

83 SCL O 167 SA0 O

84 VDD N/A 168 VDD N/A

Table 21. System memory connector pin input/output

Pin Signal name I/O Pin Signal name I/O

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 68 69

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IBM PC 300GL User Manual Page 46