Diodes Incorporated
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1.2V, 6.5Gbps 4-lane/8-channel SAS2/SATA/XAUI ReDriver with Individual Channel I2C Control

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The PI2EQX6874 is a 6.5Gbps low power, 4 lane (8-channel) SAS2, SATA3, XAUI signal ReDriver. The device provides programmable equalization, amplification, and de-emphasis by I²C control, to optimize performance
over a variety of physical mediums by reducing Inter-symbol interference.
PI2EQX6874 supports eight 100-Ohm Differential CML data I/O’s between the Protocol ASIC to a switch fabric, across a backplane, or extends the signals across other distant data pathways on the user’s platform. 
The integrated equalization circuitry provides flexibility with signal integrity of the signal before the ReDriver, whereas the integrated de-emphasis circuitry provides flexibility with signal integrity of the signal after the ReDriver. 
In addition to providing signal re-conditioning, Diodes Incorporated PI2EQX6874 also provides power management Stand-by mode operated by a Power Down pin, or through I² C register. When input is idle, the device goes into power saving Slumber mode.


  • Up to 6.5Gbps SAS2/SATA3/XAUI ReDriver
  • Supporting 8 differential channels or 4 lanes
  • Per channel I2C configuration controls (3.3V Tolerant)
  • Adjustable receiver equalization
  • Adjustable transmitter amplitude and de-emphasis
  • 50-Ohm input/output termination
  • Mux/Demux feature
  • Channel loop-back
  • OOB fully supported
  • Single supply voltage, 1.2V ± 5%
  • Active Current per channel - 95mA (typical)
  • Power down modes
    - Slumber current per channel -10mA (typical)
    - Standby current -1mA (typical)
  • Industrial temperature range: -40°C to 85°C
  • Packaging: 56-contact TQFN (5mm x 11mm)

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Channels 8
Data Rate (Gbps) 6.5
Lanes/Ports 4
Output Swing Max (mV) 1000
Programming Interface(s) I2C

Technical Documents

Evaluation Boards and User Guides

Design tool model software

Application Information

Recommended Soldering Techniques


Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2328 2018-04-12 2018-10-12 Device End of Life for tray packaging only


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