Table 5: | 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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Signal |
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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, |
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| P8 | V5 |
| 5V power |
Power |
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P9 | V5 |
| 5V power | |
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| P10 | Ground |
| 2nd mate |
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| P11 | Reserved |
| The pin corresponding to P11 in the backplane receptacle connector is also reserved |
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| The corresponding pin to be mated with P11 in the power cable receptacle connector |
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| shall always be grounded |
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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.
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
•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
4.All used voltage pins (Vx) must be terminated.
28 | Momentus 7200 FDE.1 SATA Product Manual, Rev. A |