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SEAGATE LAPTOP THIN SSHD SATA PRODUCT MANUAL, REV. D 20
SERIAL ATA (SATA) INTERFACE
5.2 SERIAL ATA DEVICE PLUG CONNECTOR PIN DEFINITIONS
Table 8 summarizes the signals on the Serial ATA interface and power connectors. Refer to the Notes below.
NOTES
1 All pins are in a single row, with a 1.27 mm (0.050 in) 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
x
) must be terminated.
Table 8 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