Seagate Nytro 5000 - Page 15

Seagate Nytro 2.5” x 7mm SSD Product Manual, Rev. A 14
Mechanical Information
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2.2.1.1 PCIe 8639 Pin Descriptions
Pin Name Description Pin Name Description
S1 GND Ground E7 REFCLK0 Reference Clock Port 0 Positive
S2 NU Not Used E8 REFCLK0- Reference Clock Port 0 Negative
S3 NU Not Used E9 GND Ground
S4 GND Ground E10 PETp0 Transmitter differential pair, Lane 0
Positive
S5 NU Not Used E11 PETn0 Transmitter differential pair, Lane 0
Negative
S6 NU Not Used E12 GND Ground
S7 GND Ground E13 PERn0 Receiver differential pair, Lane 0
Negative
E1 NU Not Used E14 PERp0 Receiver differential pair, Lane 0 Positive
E2 NU Not Used E15 GND Ground
E3 3.3V_AUX 3.3V Auxiliary Power (Required for SMBus
operation)
E16 RSVD Reserved (Seagate Internal)
E4 NU Not Used S8 GND Ground
E5 PERST0# Fundamental reset port 0 S9 NU Not Used
E6 RSVD Reserved (Seagate Internal) S10 NU Not Used
P1 NU Not Used S11 GND Ground
P2 NU Not Used S12 NU Not Used
P3 CLKREQ# Clock Request S13 NU Not Used
P4 IfDet# Interface Detect (drive type) S14 GND Ground
P5 GND Ground S15 RSVD Reserved (Seagate Internal)
P6 GND Ground S16 GND Ground
P7 NU Not Used S17 PETp1 Transmitter differential pair, Lane 1
Positive
P8 NU Not Used S18 PETn1 Transmitter differential pair, Lane 1
Negative
P9 NU Not Used S19 GND Ground
P10 PRSNT# Presence Detect (also used for drive type) S20 PERn1 Receiver differential pair, Lane 1
Negative
P11 ACT Activity signal from the drive S21 PERp1 Receiver differential pair, Lane 1 Positive
P12 Hot-Plug Ground S22 GND Ground
P13 +12V_pre 12V Power S23 PETp2 Transmitter differential pair, Lane 2
Positive
P14 +12V 12V Power S24 PETn2 Transmitter differential pair, Lane 2
Negative
P15 +12V 12V Power S25 GND Ground
S26 PERn2 Receiver differential pair, Lane 2
Negative
S27 PERp2 Receiver differential pair, Lane 2 Positive
S28 GND Ground