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PCIe 4.0, 2:1 Mux Linear ReDriver, 16Gbps, 4 Channels, I2C/Pin strapping mode


The PI3EQX16021 is a low-power, high-performance 16Gbps 4-channel Mux ReDriver™.


  • 16Gbps Serial Link with Linear Equalizer
  • Full Compliancy to PCIe 4.0 Standard
  • Supports Four Differential Channels
  • 2 to 1 Mux
  • Independent Channel Configuration of Receiver Equalization,
  • Output Swing, and Flat Gain
  • 100Ω Differential CML I/Os
  • Automatic Receiver Detect
  • Rate and Coding Agnostic
  • Transparent to Link Training
  • Pin Strap and I2C Selectable Device Programming
  • 3 Selectable Address Bits for I2C Control
  • Supply Voltage 3.3V
  • Temperature Range: 0°C to 70°C
  • Totally Lead-Free & Fully RoHS Compliant 
  • Halogen and Antimony Free. “Green” Device 
  • For automotive applications requiring specific change control
    (i.e. parts qualified to AEC-Q100/101/200, PPAP capable,
    and manufactured in IATF 16949 certified facilities), please
    contact us or your local Diodes representative.
  • Packaging (Pb-free & Green):
    • 40-Contact, ZLD40 (TQFN)


  • Motherboard
  • Desktop
  • IPC

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Channels 4
Data Rate (Gbps) 16
Lanes/Ports 4
Output Swing Max (mV) 1200
Programming Interface(s) I2C, Pinstrap

Technical Documents

Recommended Soldering Techniques


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

Request Documents



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