New industrial gigabit Ethernet transceivers supply precision timing protocol

15-11-2022 | Microchip Technology | Semiconductors

Microchip Technology Inc supplies the LAN8840 and LAN8841 Gigabit Ethernet transceiver devices that fulfil IEEE 1588v2 standards for Precision Timing Protocol. The Ethernet devices are enabled with Linux drivers and provide flexible Ethernet speed options, including 10BASE-T, 10BASE-Te, 100BASE-TX and 1000BASE-T.

The devices can aid critical packet prioritisation by offering high-speed time-stamping that is relayed between the different components to decide network latencies, accommodate for those latencies, and synchronise time among all connected devices. This functionality is key for process automation applications that need precise control production systems, including robotics, distributed sensors and cooling and mixing systems. Developed with robust applications in mind, the devices can withstand extended industrial temperatures ranging from -40C to +105C.

“The new LAN8840/41 single-port transceivers round out our Time Sensitive Networking offering by providing the connectivity for end nodes in process automation applications,” said Charles Forni, vice president of the USB and networking business unit at Microchip. “These devices complement our existing Ethernet portfolio, providing our customers with an end-to-end network solution of components, development tools and support from Microchip.”

To assist companies in achieving sustainability goals by lowering a network’s power consumption, the devices offer features such as Wake-on-LAN and energy-detect power-down mode. Also, Energy-Efficient Ethernet provides low-power idle and clock stoppage modes for optimal power performance.

The new devices are ideal for applications demanding accurate and precise time stamping, such as gas and chemical processing, electrical distribution, and currency trade systems which must be proven to be in sync with the NIST for UTC within one millisecond or finer increments.

By Seb Springall