The LAN8840 is a low-power, single-port triple-speed (10BASE-T/100BASE-TX/1000BASE-T) Ethernet physical layer transceiver (PHY) that is optimized for precision process timing. The device enables highly accurate synchronization of motors, valves, actuators and sensors over standard CAT-5, CAT-5e and CAT-6, unshielded twisted pair (UTP) cables.

The LAN8840 supports industry-standard RGMII (Reduced Gigabit Media Independent Interface) providing chip-to-chip connection to a host device with an integrated Gigabit Ethernet MAC.

The LAN8840 provides high-accuracy IEEE 1588-2008 (v2) timestamping to support Microchip Time-Sensitive Network (TSN) Ethernet switches, as well as, SoCs and FPGAs supporting the RGMII interface. The LAN8840 also provides Synchronous Ethernet (SyncE), TSN frame preemption support and multiple power saving features.

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.