Barracuda 18LP Family: ST39175LW/LC ST318275LW ... - Seagate

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60 Barracuda 18LP Product Manual, Rev. E Table 13a: Note. Signal name [1] “LW” models SE operation 68 conductor cable signal/pin assignments (Nonshielded connector)[11] The minus sign next to the signal indicates asserted state is the low voltage of the two levels used for logic signals. Connector contact number [3] Notes [ ]: See page following Table 13d. Cable conductor number [2] Connector contact number [3] Signal name [1] Signal Return 1 1 2 35 –DB12 Signal Return 2 3 4 36 –DB13 Signal Return 3 5 6 37 –DB14 Signal Return 4 7 8 38 –DB15 Signal Return 5 9 10 39 –DBP1 Signal Return 6 11 12 40 –DB0 Signal Return 7 13 14 41 –DB1 Signal Return 8 15 16 42 –DB2 Signal Return 9 17 18 43 –DB3 Signal Return 10 19 20 44 –DB4 Signal Return 11 21 22 45 –DB5 Signal Return 12 23 24 46 –DB6 Signal Return 13 25 26 47 –DB7 Signal Return 14 27 28 48 –DBP GND 15 29 30 49 GND GND 16 31 32 50 GND TermPwr 17 33 34 51 TermPwr TermPwr 18 35 36 52 TermPwr Reserved 19 37 38 53 Reserved GND 20 39 40 54 GND Signal Return 21 41 42 55 –ATN GND 22 43 44 56 GND Signal Return 23 45 46 57 –BSY Signal Return 24 47 48 58 –ACK Signal Return 25 49 50 59 –RST Signal Return 26 51 52 60 –MSG Signal Return 27 53 54 61 –SEL Signal Return 28 55 56 62 –C/D Signal Return 29 57 58 63 –REQ Signal Return 30 59 60 64 –I/O Signal Return 31 61 62 65 –DB8 Signal Return 32 63 64 66 –DB9 Signal Return 33 65 66 67 –DB10 Signal Return 34 67 68 68 –DB11
Barracuda 18LP Product Manual, Rev. E 61 Table 13b: “LW” models differential cable 68 conductor signal/pin assignments (Nonshielded connector) [11] Note. Signal name [1] The minus sign next to the signal indicates asserted state is the low voltage of the two levels used for logic signals. Connector contact number [3] Notes [ ]: See page following Table 13d. Cable conductor number [2] Connector contact number [3] Signal name [1] +DB12 1 1 2 35 –DB12 +DB13 2 3 4 36 –DB13 +DB14 3 5 6 37 –DB14 +DB15 4 7 8 38 –DB15 +DBP1 5 9 10 39 –DBP1 +DB0 6 11 12 40 –DB0 +DB1 7 13 14 41 –DB1 +DB2 8 15 16 42 –DB2 +DB3 9 17 18 43 –DB3 +DB4 10 19 20 44 –DB4 +DB5 11 21 22 45 –DB5 +DB6 12 23 24 46 –DB6 +DB7 13 25 26 47 –DB7 +DBP 14 27 28 48 –DBP GND 15 29 30 49 GND DIFFSNS [8] 16 31 32 50 GND TermPwr 17 33 34 51 TermPwr TermPwr 18 35 36 52 TermPwr Reserved 19 37 38 53 Reserved GND 20 39 40 54 GND +ATN 21 41 42 55 –ATN GND 22 43 44 56 GND +BSY 23 45 46 57 –BSY +ACK 24 47 48 58 –ACK +RST 25 49 50 59 –RST +MSG 26 51 52 60 –MSG +SEL 27 53 54 61 –SEL +C/D 28 55 56 62 –C/D +REQ 29 57 58 63 –REQ +I/O 30 59 60 64 –I/O +DB8 31 61 62 65 –DB8 +DB9 32 63 64 66 –DB9 +DB10 33 65 66 67 –DB10 +DB11 34 67 68 68 –DB11
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