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3.3V, 2.5/5/8Gbps 4 Port/8 channel LINEAR PCIe ReDriver with Pin Strap and I2C control, flowthough pinout

The PI3EQX8908A is a PCIe, 8 differential channels ReDriver. The device provides programmable linear equalization, output swing and gain, by either pin strapping option or I²C Control, to optimize performance over a variety of physical mediums by reducing Inter-symbol interference. The PI3EQX8908A supports eight 100-Ohm Differential CML data I/O’s and extends the signals across other distant data pathways on the user’s platform.
The programmable settings can be applied easily via pins, software (I²C) or loaded via an external EEPROM. When operating in the EEPROM mode, the configuration information is automatically loaded on power up, which eliminates the need for an external microprocessor or software driver. The PI3EQX8908A offers fully Linear Transfer function to fully comply with all PCIe 3 Link Training signals.


  • 2.5/5.0/8.0Gbps serial link with linear equalizer
    Support PCIe Gen 1/2/3 protocol
  • Supporting 8 differential channels
  • Independent channel configuration of receiver equalization, output swing and flat gain
  • Per Channel Activity Detector with select-able input termination between 50Ω to VDD and 200KΩ to VDD
  • Per Channel Output Termination Detector on power up with select-able output termination between 50Ω to VDD and High impedance
  • Very linear transfer function
  • Fully compliant to PCISIG Link Training
  • Single-ended mode receiver detection for PCIe
  • Input Threshold detection
  • Pin strap and I2C master/slave select-able device programming with external EEPROM
  • 4-bit select-able address bit for I²C
  • Supply Voltage: 3.3V ±0.3V
  • Industrial Temperature Range: -40°C to 85°C
  • Packaging (Pb-free & Green):
  • 54-contact TQFN (10mm x 5.5mm x 0.5mm pitch) - flow through pinout

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Channels 8
Data Rate (Gbps) 2.5, 5, 8
Lanes/Ports 4
Output Swing Max (mV) 1200
Programming Interface(s) I2C, Pinstrap

Related Content



Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
Request Samples
Qty. Carrier
PI3EQX8908AZFE Obsolete W-QFN55100-54 GREEN 156 TRAY
PI3EQX8908AZFEX Active W-QFN55100-54 TPGP 3500 T&R


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 3500 12/5/2022 Europe, Asia, North America Buy Now
Future Electronics - Asia 3500 12/4/2022 Singapore Contact Sales
Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free

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


Related Application FAQs