Seagate ST3300457FC Cheetah 15K.5 SCSI Product Manual - Page 72

Table 19, LC 80-pin single-ended SE I/O connector pin assignments [11], Notes [ ]

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Table 19: LC 80-pin single-ended (SE) I/O connector pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Signal name [1] 12 V CHARGE 12 V 12 V 12 V NC [10] NC [10] -DB11 -DB10 -DB9 -DB8 -I/O -REQ -C/D -SEL -MSG -RST -ACK -BSY -ATN -DBP -DB7 -DB6 -DB5 -DB4 -DB3 -DB2 -DB1 -DB0 -DP1 -DB15 -DB14 -DB13 -DB12 +5 V +5 V +5 V NC [10] RMT-START [5] [9] [12] SCSI ID (0) [7] [9] [12] SCSI ID (2) [7] [9] [12] Connector contact number [3] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Signal number [3] 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Contact name[1] 12 V GND 12 V GND 12 V GND MATED 1 [12] NC [10] DIFFSNS [8] GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND MATED 2 5 V GND 5 V GND ACTIVE LED OUT [4] [9] DLYD-START [6] [9] [12] SCSI ID (1) [7] [9] [12] SCSI ID (3) [7] [9] [12] Notes [ ]: See page following Table 20. 66 Cheetah 15K.5 SCSI Product Manual, Rev. J

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66
Cheetah 15K.5 SCSI Product Manual, Rev. J
Table 19:
LC 80-pin single-ended (SE) I/O connector pin assignments [11]
Note.
A minus sign preceding a signal name indicates that signal is active low.
Notes [ ]:
See page following Table 20.
Signal
name [1]
Connector
contact
number [3]
Signal
number [3]
Contact
name[1]
12 V CHARGE
1
41
12 V GND
12 V
2
42
12 V GND
12 V
3
43
12 V GND
12 V
4
44
MATED 1 [12]
NC [10]
5
45
NC [10]
NC [10]
6
46
DIFFSNS [8]
–DB11
7
47
GND
–DB10
8
48
GND
–DB9
9
49
GND
–DB8
10
50
GND
–I/O
11
51
GND
–REQ
12
52
GND
–C/D
13
53
GND
–SEL
14
54
GND
–MSG
15
55
GND
–RST
16
56
GND
–ACK
17
57
GND
–BSY
18
58
GND
–ATN
19
59
GND
–DBP
20
60
GND
–DB7
21
61
GND
–DB6
22
62
GND
–DB5
23
63
GND
–DB4
24
64
GND
–DB3
25
65
GND
–DB2
26
66
GND
–DB1
27
67
GND
–DB0
28
68
GND
–DP1
29
69
GND
–DB15
30
70
GND
–DB14
31
71
GND
–DB13
32
72
GND
–DB12
33
73
GND
+5 V
34
74
MATED 2
+5 V
35
75
5 V GND
+5 V
36
76
5 V GND
NC [10]
37
77
ACTIVE LED OUT [4] [9]
RMT-START [5] [9] [12]
38
78
DLYD-START [6] [9] [12]
SCSI ID (0) [7] [9] [12]
39
79
SCSI ID (1) [7] [9] [12]
SCSI ID (2) [7] [9] [12]
40
80
SCSI ID (3) [7] [9] [12]