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Microchip Technology LAN83C185-JT — Discrete Semiconductors

LAN83C185-JT Ethernet PHY, 10/100 Base-T/TX, 64-LQFP

MPNLAN83C185-JT
End of Life

Microchip Technology LAN83C185-JT Ethernet PHY controller, 10/100 Base-T/TX, parallel interface, 64-LQFP, 3.3V supply, 40mA, 0°C to 70°C.

$5.02Ref. price · indicative, final on quote
Microchip Technology LAN83C185-JT datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LAN83C185-JT specifications
ParameterValue
Supply voltage3V ~ 3.6V
Current - supply40mA
ProtocolEthernet
InterfaceParallel
Operating temperature0°C ~ 70°C
Standards10/100 Base-T/TX PHY
PackageTray
FunctionController
Case64-LQFP

Product details

PHY selection for 10/100 Ethernet MAC integration

The Microchip LAN83C185-JT is a 10/100 Base-T/TX PHY controller in a 64-LQFP package, providing the physical-layer interface between an Ethernet MAC and the twisted-pair cable. Its parallel host interface connects directly to the MAC without an SPI bridge, keeping the BOM count low for embedded Ethernet nodes. The 64-TQFP (10x10 mm) footprint fits on compact two-layer boards with careful routing of the differential pairs.

Rated for 3V to 3.6V operation, the LAN83C185-JT runs from a single 3.3V supply — no additional 1.8V or 2.5V rail is needed, simplifying the power-tree design. ROHS3 Compliant per, the part meets current environmental restrictions for EU and global markets, with no exemption-based compliance gaps to track.

Frequently asked questions

What is the LAN83C185-JT used for?

It is a 10/100 Base-T/TX Ethernet PHY controller that provides the physical-layer interface between an Ethernet MAC and the RJ45 connector. The parallel host interface connects directly to a MAC without SPI overhead, making it suitable for embedded systems requiring wired Ethernet connectivity.

What package does the LAN83C185-JT come in?

The LAN83C185-JT is supplied in a 64-LQFP package (supplier device package 64-TQFP, 10x10 mm), shipped in trays. The 0.5 mm pitch QFP is hand-solderable and inspectable, suitable for prototype assembly and production reflow.