4.2Serial 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 | ||
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Segment | Pin | Function | Definition |
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| S1 | Ground | 2nd mate |
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| S2 | A+ | Differential signal pair A from Phy |
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| S3 | A- |
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| S4 | Ground | 2nd mate |
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| S5 | B- | Differential signal pair B from Phy |
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| S6 | B+ |
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S7 | Ground | 2nd mate | |
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| Key and spacing separate signal and power segments | |
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| P1 | V33 | 3.3V power |
| P2 | V33 | 3.3V power |
| P3 | V33 | 3.3V power, |
| P4 | Ground | 1st mate |
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| P5 | Ground | 2nd mate |
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| P6 | Ground | 2nd mate |
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| P7 | V5 | 5V power, |
Power | P8 | V5 | 5V power |
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| P9 | V5 | 5V power |
| P10 | Ground | 2nd mate |
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| P11 | Ground or LED signal | If grounded, drive does not use deferred spin |
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| P12 | Ground | 1st mate. |
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| P13 | V12 | 12V power, |
| P14 | V12 | 12V power |
| P15 | V12 | 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 |
