6.5G 2x2 Crosspoint

The M21450 is a dual channel device designed to enable the transmission of multi gigabit serial data through the most challenging environments. The device features two independent adaptive equalizers that automatically equalize data at rates up to 6.5 Gbps. Control of key functions of the M21450 is provided through hardware pins, and full register control of the M21450 is provided through an I2C compatible software control interface. The M21450 can also self-configure from an external EEPROM without the need for a host processor. For compatibility with PCI-Express and S-ATA/SAS systems, the M21450 is designed with an electrical idle pass-through function to drive the differential output to the common mode level during OOB signaling. Boundary scan is provided for highspeed input and output pins, and the device is available in a 6x6 mm, 40 pin MLF package.

Product Specifications

Part Number
6.5G 2x2 Crosspoint
Max Data Rate(Gbps)
Number of Channels
Embedded CDR
Package Size


  • Adaptive Equalization for up to 40" of FR-4 PCB trace at 6.25 Gbps
  • Software configurable 2x2 Crosspoint Switch Matrix
  • Extended operating case temperature range (-20°C to 85°C)
  • 6x6 mm, 40 pin MLF package
  • HW, SW, AND EEPROM programmable
  • Up to 40 dB of input equalization and 6 dB of output de-emphasis
  • Low power dissipation: 140 mW per channel, 280 mW total power at 1.2V
  • Dual channel adaptive equalizer for data rates up to 6.5 Gbps
  • Supports electrical idle signaling for PCIe and OOB signaling for SATA/ SAS

Technical Resources

Data Sheet

Product Briefs

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6.5 Gbps 2x2 XPT - RoHS IC