Serial Ata Device Plug Connector Pin Definitions - Seagate Barracuda 7200.10 Serial ATA Product Manual

4.2

Serial ATA device plug connector pin definitions

Table 5 summarizes the signals on the Serial ATA interface and power connectors..
Table 5: Serial ATA connector pin definitions
Segment Pin Function
S1 Ground
S2 A+
S3 A-
S4 Ground
S5 B-
S6 B+
Signal
S7 Ground
P1 V
33
P2 V
33
P3 V
33
P4 Ground
P5 Ground
P6 Ground
P7 V
5
P8 V
Power
5
P9 V
5
P10 Ground
P11 Ground or LED signal
P12 Ground
P13 V
12
P14 V
12
P15 V
12
Notes:
1. All pins are in a single row, with a 1.27 mm (0.050") pitch.
2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this
case, the mating sequences are:
• the ground pins P4 and P12.
• the pre-charge power pins and the other ground pins.
• the signal pins and the rest of the power pins.
3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when
installed in a blind-mate backplane configuration.
4. All used voltage pins (V
22
Definition
2nd mate
Differential signal pair A from Phy
2nd mate
Differential signal pair B from Phy
2nd mate
Key and spacing separate signal and power segments
3.3V power
3.3V power
3.3V power, pre-charge, 2nd mate
1st mate
2nd mate
2nd mate
5V power, pre-charge, 2nd mate
5V power
5V power
2nd mate
If grounded, drive does not use deferred spin
1st mate.
12V power, pre-charge, 2nd mate
12V power
12V power
) must be terminated.
x
Barracuda 7200.10 Serial ATA Product Manual, Rev. B