M88RT51632 ( x16 PCIe® 5.0/CXL® 2.0 Retimer)

Montage provides M88RT51632, a high-performance x16 PCIe® 5.0/CXL® 2.0 Retimer that complies with PCIe® Base Specification 5.0 and supports mainstream package requirements. The Retimer employs cutting-edge signal conditioning techniques to mitigate the effects of various jitter sources and compensate for channel attenuation.

Retimer 5.0 Functional Block Diagram


  • High-performance PCIe® 5.0 x16 Retimer
    • 32 GT/s SerDes, capable of compensating for channel loss up to 36 dB
    • Eliminate deterministic input jitter and random input jitter
    • Support lane polarity inversion
    • Support hot plug
    • Low power and low latency
  • PCIe® Standards and Compatibility
    • Compliant with PCIe® 5.0 Base Specification, backward compliant with PCIe® 4.0 and below
    • Support PCIe®/CXL® dual-mode operation
    • Support mainstream package requirements
  • Clocking
    • Use standard 100 MHz reference clock
    • Support Common Clock, SRNS and SRIS
    • Support 100 MHz reference clock output
  • Power Management
    • Support PCIe® L1PM feature
    • Powered by 1.8 V and 0.9 V
  • Reliability, Availability and Maintainability
    • IEEE 1149.6 AC-JTAG Boundary Scan
    • Support Rx margining test and slave loop-back
    • Support multiple DFX features
    • Device configuration via SMBus or EEPROM

Typical Applications

  • Servers
  • Storage appliances
  • Communication equipments
  • Hardware accelerators