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LAN83C185
  • LAN83C185

LAN83C185

Not Recommended for new designs

The Microchip LAN83C185 is a low-power, highly integrated analog interface IC for high-performance embedded Ethernet applications. The LAN83C185 requires only a single +3.3V supply.The LAN83C185 consists of an encoder/decoder, scrambler/descrambler, transmitter with wave-shaping and output driver, twisted-pair receiver with on-chip adaptive equalizer and baseline wander (BLW) correction, clock and data recovery, and Media Independent Interface (MII).The LAN83C185 is fully compliant with IEEE 802.3/802.3u standards and supports both 802.3u-compliant and vendor-specific register functions. It contains a full-duplex 10BASE-T/100BASE-TX transceiver and supports 10 Mbps (10BASE-T) operation on Category 3 and Category 5 unshielded twisted-pair cable, and 100 Mbps (100BASE-TX) operation on Catego...

Microchip Technology LAN83C185 Product Info

16 April 2026 1

Parameters

Automotive

No

DownstreamPorts

1

Energy Efficient Ethernet

No

EtherCAT

No

Port Speed

10/100Mbps

Fiber Support

No

HP Auto MDIX

No

On-Chip Termination

No

InterfaceUpStream

MII

Internal Regulator

Yes

LinkMDCableDiag

No

MACsec

No

Supply Voltages

3.3

SyncE

No

Temperature Range Max

70

Temperature Range Min

0

Digital I/O Voltage

3.3

WakeonLAN

No

IEEE 1588 v2

No

Features

  • Single Chip Ethernet PHY
  • Fully Compliant with IEEE 802.3/802.3u Standards
  • 10BASE-T and 100BASE-TX Support
  • Supports Auto-Negotiation and Parallel Detection
  • Automatic Polarity Correction
  • Integrated DSP with Adaptive Equalizer
  • Baseline Wander (BLW) Correction
  • Media Independent Interface (MII)
  • 802.3u Compliant Register Functions
  • Vendor Specific Register Functions
  • Comprehensive Power Management Features
  • General Power-down Mode
  • Energy Detect Power-down Mode
  • Low profile 64-pin TQFP RoHS compliant package
  • Single +3.3V Supply with 5V Tolerant I/O
  • 0.18 Micron Technology
  • Low Power Consumption
  • Operating Temperature 0°C to 70°C
  • Internal +1.8V Regulator
  • LAN on Motherboard
  • 10/100 PCMCIA/CardBus
    • Applications:
    • Embedded Telecom Applications
    • Video Record/Playback Systems
    • Cable Modems and Set-Top Boxes
    • Digital Televisions
    • Wireless Access Points

    Description

    The Microchip LAN83C185 is a low-power, highly integrated analog interface IC for high-performance embedded Ethernet applications. The LAN83C185 requires only a single +3.3V supply.

    The LAN83C185 consists of an encoder/decoder, scrambler/descrambler, transmitter with wave-shaping and output driver, twisted-pair receiver with on-chip adaptive equalizer and baseline wander (BLW) correction, clock and data recovery, and Media Independent Interface (MII).

    The LAN83C185 is fully compliant with IEEE 802.3/802.3u standards and supports both 802.3u-compliant and vendor-specific register functions. It contains a full-duplex 10BASE-T/100BASE-TX transceiver and supports 10 Mbps (10BASE-T) operation on Category 3 and Category 5 unshielded twisted-pair cable, and 100 Mbps (100BASE-TX) operation on Category 5 unshielded twisted-pair cable.


    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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