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Microchip KSZ8061

Microchip KSZ8061 Quiet-WIRE® 10/100BASE-TX Ethernet PHY

The Microchip KSZ8061, is a single-chip 10BASE-T/100BASE-TX automotive- and industrial-grade Ethernet physical-layer transceiver, which is designed for data communication over low-cost Unshielded Twisted Pair (UTP) cables.  

It is the first of a new family based on the patented and programmable Quiet-WIRE® enhanced EMC technology, providing reduced line emissions and superior receiver immunity performance.  System reliability is also enhanced with Microchip’s proven LinkMD+® advanced cable diagnostics, along with an embedded signal-quality indicator for the dynamic monitoring of link error margins.

With fast boot and linkup in less than 20 mS, the KSZ8061 is ideal for applications where start-up time is critical and is available with an extended temperature range of -40 to +105 degrees Celsius for harsh-environment applications. This Ethernet PHY transceiver family provides support for both the MII and RMII processor interfaces, for easy integration with numerous processors, MCUs and SoCs.


  • Quiet-WIRE programmable EMI filter
  • MII/RMII interface with MDC/MDIO management interface
  • On-chip termination resistors for the differential pairs
  • LinkMD+ receive signal quality indicator
  • Fast start-up and link
  • Low-power design with IEEE 802.3az Energy Efficient Ethernet support
  • Ultra-Deep Sleep standby mode: CPU or signal detect activated
  • Loopback modes for diagnostics
  • Programmable interrupt output


  • Industrial Control
  • Vehicle On-Board diagnostics
  • Automotive gateways
  • Camera and sensor networking
  • Infotainment

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