Diodes Incorporated
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6.5Gbps 1-port SAS2/SATA ReDriver with Pin Strap Control

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The PI3EQX6801A is a low power, 1.5V/3.3V, 6.5Gbps, SATA/SAS signal ReDriver™. The device provides programmable equalization, to optimize performance over a variety of physical mediums by reducing Inter-Symbol Interference.

PI3EQX6801A supports two 100Ω Differential CML data I/O’s between the Protocol ASIC to a switch fabric, across a backplane, or to extend 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.
A low-level input signal detection and output squelch function is provided for each channel. Each channel operates fully independently.
When the channels are enabled (x_EN#=0) and operating, that channels input signal level (on xI+/-) determines whether the output is active. If the input signal level of the channel falls below the active threshold level (Vth-) then the outputs are driven to the common mode voltage.
Each lane can be powered-down if x_EN# =1, and when A_EN# and B_EN# are both high, the device enters a low power standby mode.


  • Server
  • Desktop
  • Data Storage/Workstation


  • Two 6.5Gbps differential channels
  • Output swing up to 1.2V pk-to-pk
  • SAS, SATA fully supported
  • Adjustable Receiver Equalization - 0 to 16 dB
  • 100Ω Differential CML I/O’s
  • Continuous step output swing adjustment
  • Continuous step output pre-emphasis control
  • Input signal level detect and squelch for each channel
  • OOB fully supported
  • Auto HDD Rate Detection for out swing/emphasis setting
  • Supply Voltage: 1.5V or 3.3V
  • Low Power, 162mW @ 1.5V (600 mV Swing)
  • Stand-by Mode – Power Down State: Current < 56 μA
  • Auto Slumber Mode power: 22.5mW typical
  • Industrial Temperature Range -40 to 85°C
  • Packaging: 20-contact TQFN (4x4mm)

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Channels 2
Data Rate (Gbps) 6.5
Lanes/Ports 1
Output Swing Max (mV) 1200
Programming Interface(s) Pinstrap

Technical Documents

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-2520 2021-05-27 2021-08-27 Qualified Additional Bump Site and Assembly/Test (A/T) Sites
PCN-2328 2018-04-12 2018-10-12 Device End of Life for tray packaging only


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