Seagate SV35 SV35.3 Series SATA Product Manual - Page 34

Serial ATA device plug connector pin definitions

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4.2 Serial ATA device plug connector pin definitions Table 6 summarizes the signals on the Serial ATA interface and power connectors. Table 6: Serial ATA connector pin definitions Segment Pin Function Definition S1 Ground S2 A+ S3 A- 2nd mate Differential signal pair A from Phy S4 Ground S5 BS6 B+ 2nd mate Differential signal pair B from Phy Signal S7 Ground 2nd mate Key and spacing separate signal and power segments P1 V33 P2 V33 P3 V33 P4 Ground 3.3V power 3.3V power 3.3V power, pre-charge, 2nd mate 1st mate P5 Ground P6 Ground P7 V5 Power P8 V5 P9 V5 P10 Ground 2nd mate 2nd mate 5V power, pre-charge, 2nd mate 5V power 5V power 2nd mate P11 Ground or LED signal If grounded, drive does not use deferred spin P12 Ground 1st mate. P13 V12 P14 V12 P15 V12 12V power, pre-charge, 2nd mate 12V power 12V power Notes: 1. All pins are in a single row, with a 1.27 mm (0.050") pitch. 28 SV35.3 Series Serial ATA Product Manual, Rev. B

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28
SV35.3 Series Serial ATA Product Manual, Rev. B
4.2
Serial ATA device plug connector pin definitions
Table 6 summarizes the signals on the Serial ATA interface and power connectors.
Notes:
1.
All pins are in a single row, with a 1.27 mm (0.050”) pitch.
Table 6:
Serial ATA connector pin definitions
Segment
Pin
Function
Definition
Signal
S1
Ground
2nd mate
S2
A+
Differential signal pair A from Phy
S3
A-
S4
Ground
2nd mate
S5
B-
Differential signal pair B from Phy
S6
B+
S7
Ground
2nd mate
Key and spacing separate signal and power segments
Power
P1
V
33
3.3V power
P2
V
33
3.3V power
P3
V
33
3.3V power, pre-charge, 2nd mate
P4
Ground
1st mate
P5
Ground
2nd mate
P6
Ground
2nd mate
P7
V
5
5V power, pre-charge, 2nd mate
P8
V
5
5V power
P9
V
5
5V power
P10
Ground
2nd mate
P11
Ground or LED signal
If grounded, drive does not use deferred spin
P12
Ground
1st mate.
P13
V
12
12V power, pre-charge, 2nd mate
P14
V
12
12V power
P15
V
12
12V power