Seagate ST318436LW - Page 82

72 Barracuda 18XL Product Manual, Rev. A
Table 13a: “LW” models SE operation 68 conductor cable signal/pin assignments (Nonshielded connector)[11]
Note.
The minus sign next to the signal indicates asserted state is the low voltage of the two levels used for
logic signals.
Notes [ ]:
See page following Table 13f.
Signal
name [1]
Connector
contact
number [3]
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
GND15293049GND
GND16313250GND
TermPwr17333451TermPwr
TermPwr18353652TermPwr
Reserved 19 37 38 53 Reserved
GND20394054GND
Signal Return 21 41 42 55 –AT N
GND22434456GND
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