Serial Ata (Sata) Interface; Hot-Plug Compatibility; Serial Ata Device Plug Connector Pin Definitions - Seagate ST500LX005 Product Manual

6.0

Serial ATA (SATA) Interface

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA programmed
input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6. The drive also supports the use of
the IORDY signal to provide reliable high-speed data transfers.
For detailed information about the Serial ATA interface, refer to the Serial ATA: High Speed Serialized AT Attachment
specification.
6.1

Hot-Plug Compatibility

Seagate Laptop Thin SSHD SATA drives incorporate connectors which enable users to hot plug these drives in accordance
with the Serial ATA: High Speed Serialized AT Attachment specification revision 2.0. This specification can be downloaded
from . This device requires a COMRESET from the host after a hotplug event.
www.serialata.org
6.2

Serial ATA Device Plug Connector Pin Definitions

summarizes the signals on the Serial ATA interface and power connectors. Refer to the
Table 8
Table 8 Serial ATA Connector Pin Definitions
Segment Pin Function
S1 Ground
S2 A+
S3 A-
Signal S4 Ground
S5 B-
S6 B+
S7 Ground
Key and spacing separate signal and power segments
P1 V
33
P2 V
33
P3 V
33
P4 Ground
P5 Ground
P6 Ground
P7 V
5
Power P8 V
5
P9 V
5
P10 Ground
P11 Ground or LED signal
P12 Ground
P13 V
12
P14 V
12
P15 V
12
Notes
All pins are in a single row, with a 1.27 mm (0.050 in) pitch.
1
The comments on the mating sequence apply to the case of backplane blindmate connector only. In this case, the
2
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.
Seagate Laptop Thin SSHD SATA Product Manual, Rev. J
Definition
2nd mate
Differential signal pair A from Phy
2nd mate
Differential signal pair B from Phy
2nd mate
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
Serial ATA (SATA) Interface
below.
Notes
25