Serial Ata (Sata) Interface; Hot-Plug Compatibility; Serial Ata Device Plug Connector Pin Definitions - Seagate ST8000NM0045 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.
For detailed information about the Serial ATA interface, refer to the "Serial ATA: High Speed Serialized AT Attachment" specification.
6.1

Hot-Plug compatibility

Enterprise Capacity 3.5 HDD Serial ATA drives incorporate connectors which enable users to hot plug these drives in accordance with
the Serial ATA Revision 3.2 specification. This specification can be downloaded from www.serialata.org.
The drive motor must come to a complete stop (Ready to spindle stop time indicated in Section 2.4)
Caution
prior to changing the plane of operation. This time is required to insure data integrity.
6.2

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-
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:
1. All pins are in a single row, with a 1.27mm (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
Seagate Enterprise Capacity 3.5 HDD v5 Serial ATA Product Manual, Rev. C
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
) must be terminated.
x
26