Microchip LAN867x family

Smart manufacturing is driving efficiencies in automation as digital networks increasingly connect machines, production line equipment and robotics. Operation Technology (OT) and Information Technology (IT) networks that are critical to the Industrial Internet of Things (IIoT) rely on Ethernet for interoperability and to speed data transmission and ensure security. The LAN8670/1/2 family of 10BASE-T1S PHYs, expands 10 Mbps Ethernet connectivity to the very edges of industrial networks, simplifying architectures and reducing risk for designers. 

Key features

• Ethernet architecture all the way to the edge of the network
• Multidrop bus
• MII or RMII interfaces
• -40°C to +125°C extended temperature range

Additional features

• High-performance 10BASE-T1S Ethernet PHY
• Designed according to IEEE 802.3cg-2019™
• 10 Mbit/s over single balanced pair
• Half-duplex point-to-point link segments
• Half-duplex multidrop mixing segments
• Media Independent Interface (MII) and Reduced Media Independent Interface (RMII) with Serial Management Interface (SMI) for rapid register access
• Carrier Sense Multiple Access/Collision Detection (CSMA/CD) media access control
• Physical Layer Collision Avoidance (PLCA)
• Allows for high bandwidth utilization by avoiding collisions on the physical layer
• Burst mode for transmission of multiple packets for high packet rate latency-sensitive applications
• Enhanced electromagnetic compatibility/electromagnetic interference (EMC/EMI) performance
• Single 3.3 V supply
• Small footprint 32-pin VQFN packaging (5 x 5 mm) with wettable flanks
• -40°C to +125°C extended temperature range
• Microchip Functional Safety Ready

Applications

• Recommended for Automotive Designs
• Factory automation networks - sensor and actuator
• Building automation - temperature sensors, HVAC
• Process automation - sensors and actuators
• Computer backplanes - consolidation of multiple buses

Design Services

Microchip's Design Check Services include a LANCheck® Review. Together with your EBV contact, a Microchip engineer will review your component selection, schematic and PCB design and layout to look for common mistakes. We will provide a detailed report with guidance based on this review.

Available Tools

10BASE-T1S PHY RMII and MII Evaluation Boards 

• Standard form factor to connect to Microchip MCU platforms 
• Includes the Bus Interface Network (analog front end) 
• Small form factor

10BASE-T1S PHY USB Evaluation Board 

• Any USB host can be a 10BASE-T1S node 
• Drivers for Linux® and Windows®   

MPLAB® Harmony 3 Development Framework 

• Integration into development framework for Microchip microcontrollers and microprocessors 

Espresso T1S Network Spy 

• Traces low level bus events 
• Hardware timestamping 
• 100BASE-TX interface to a personal computer for data and control 
• Time-sync with Microchip’s OptoLyzer® MOCCA family of tools 
• Seamless integration into OptoLyzer Studio