The M88RT41632 is a high-performance, 16-lane signal retimer used to secure the link budget to meet the challenging signal integrity requirements for long PCIe 4.0 channel comprising PCB, connector and cable. It uses advanced signal conditioning techniques to compensate for the channel attenuation and remove the impacts of various jitter sources.



  • High-performance PCIe 4.0 retimer with 16 bidirectional lanes
    • High-performance 16 GT/s SerDes, capable of compensating for channel loss up to 28 dB
    • Eliminate deterministic input jitter and random input jitter
    • Support per-lane SerDes configuration
  • PCIe standards and compatibility
    • Compliant with PCIe 4.0 Base Specification
    • Support mainstream package requirements
  • Clocking
    • Use standard 100 MHz reference clock
    • Support Common Clock, SRNS and SRIS feature
    • Support 100 MHz reference clock output
  • Power management
    • Support PCIe L1PM feature
  • Support lane polarity inversion
  • Support hot plug
  • Low power and low latency
  • Test and debug
    • IEEE 1149.6 AC-JTAG Boundary Scan
    • Support Rx margining test and slave loop-back
    • Support multiple DFX features for convenient system bring-up and test
  • Device configuration via SMBus or EEPROM
  • Powered by 1.8 V and 0.8 V
  • 22.8 mm x 8.9 mm, 354-ball FCCSP package


  • Servers
  • Storage Appliances
  • Hardware Accelerators