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LAN8742A
  • LAN8742A

LAN8742A

In Production

Microchip's LAN8742A/LAN8742Ai are the latest generation of low-power, 10/100 Fast Ethernet PHYs featuring Wake-On-LAN functionality, which provides additional system sleep modes for improved power savings. The LAN8742A/LAN8742Ai feature deterministic loop back delay, assuring real-time system performance as well as cable diagnostics which reduce network installation costs. These devices are available in both commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges.The LAN8742A/LAN8742Ai are well-suited for Consumer, Embedded and Industrial applications. Additionally, these devices support auto-negotiation, auto-polarity correction, HP Auto-MDIX† and is compliant with IEEE 802.3 and 802.3u standards.†HP Auto-MDIX eliminates the need for special "crossover" ...

Microchip Technology LAN8742A Product Info

16 April 2026 0

Parameters

Automotive

No

DownstreamPorts

1

Energy Efficient Ethernet

No

EtherCAT

No

Port Speed

10/100Mbps

Fiber Support

No

HP Auto MDIX

Yes

On-Chip Termination

No

InterfaceUpStream

RMII

Internal Regulator

Yes

LinkMDCableDiag

Yes

MACsec

No

Supply Voltages

3.3

SyncE

No

Temperature Range Max

85

Temperature Range Min

-40

Digital I/O Voltage

1.8/3.3

WakeonLAN

Yes

IEEE 1588 v2

No

Features

  • Single-Chip Ethernet PHY
  • Flexible power management architecture
  • LVCMOS variable I/O voltage range +1.6V to +3.6V
  • Integrated 1.2V regulator with disable feature
  • Cable diagnostics
  • Deterministic latency
  • Uses a low-cost 25MHz crystal for RMII mode to drive 50MHz output
  • Wake-On-LAN
  • HP Auto-MDIX support
  • Supports commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges
  • 24-pin, 4x4mm SQFN, RoHS-compliant package
    • Applications:
    • Set-top Boxes
    • DVRs/PVRs
    • Digital TVs/iPTVs
    • Printers
    • IP and Video Phones
    • Industrial
    • Embedded/Telecom
    • Test/Measurement Instrumentation
    • Wireless Access Points
    • Power over Ethernet (PoE)

    Description

    Microchip's LAN8742A/LAN8742Ai are the latest generation of low-power, 10/100 Fast Ethernet PHYs featuring Wake-On-LAN functionality, which provides additional system sleep modes for improved power savings. The LAN8742A/LAN8742Ai feature deterministic loop back delay, assuring real-time system performance as well as cable diagnostics which reduce network installation costs. These devices are available in both commercial (0°C to 70°C) and industrial (-40°C to 85°C) temperature ranges.

    The LAN8742A/LAN8742Ai are well-suited for Consumer, Embedded and Industrial applications. Additionally, these devices support auto-negotiation, auto-polarity correction, HP Auto-MDIX† and is compliant with IEEE 802.3 and 802.3u standards.


    †HP Auto-MDIX eliminates the need for special "crossover" cables when connecting LAN devices together.


    Microchip's complimentary and confidential MicroCHECK design review service, which offers insight from the initial concept to the final PCB layout, is available to customers who are using our products in their projects. You can confidently submit your design materials in a secure and private setting, and our expert engineers will provide individualized feedback to enhance your design. MicroCHECK design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

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