LAN8671C2T-E/U3B

The LAN8670/1/2 is a high-performance 10BASE-T1S single-pair Ethernet PHY transceiver for 10 Mbit/s halfduplex networking over a single pair of conductors. Utilizing standard Ethernet technology in sensor/ actuator networks reduces application costs by eliminating gateways necessary with legacy networking technologies. The ability to connect multiple PHYs onto a common mixing segment further saves implementation costs by reducing cabling and switch ports. The LAN8670/1/2 is designed for use in highreliability cost sensitive automotive, industrial, building automation, and sensor/actuator applications.

Applications

• In-vehicle networking and automotive zonal architecture
• Sensor/actuator networks
• Industrial control cabinets and machine control
• Building automation
• LED lighting

Key features

• High-performance 10BASE-T1S Ethernet PHY designed according to IEEE Std 802.3cg-2019 – 10 Mbit/s over single balanced pair
• Half-duplex multidrop mixing segments up to at least 25m with up to at least 8 PHYs
• Half-duplex point-to-point link segments up to at least 15m
• Media Independent Interface (MII) and Reduced Media Independent Interface (RMII)
• 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 medium
• Burst mode for transmission of multiple packets for latency-sensitive applications
• Minimize latency for time-sensitive applications by assigning multiple PLCA IDs per node
• Application Controlled Media Access (ACMA) for implementation of collision-free Time-Division Multiple Access (TDMA) methods
• IEEE Std 802.1AS / IEEE 1588 application support – Enables high-precision clock recovery with ultralow jitter for microcontrollers without TimeSensitive Networking (TSN) support
• Credit-based traffic shaping
• EtherGREEN Energy Efficiency
• Low power 10BASE-T1S PHY operation
• Ultra-low power sleep mode
• Wake up triggered by either MDI activity or local WAKE_IN
• WAKE_OUT pulse assertion
• INH output for enable/disable of ECU supply
• Cable fault (open/short) diagnostics and Signal Quality Indication (SQI) support
• Over-temperature and under-voltage detection
• Enhanced electromagnetic compatibility / electromagnetic interference (EMC/EMI) performance – Low RF emissions
• Digital output drive strength adjust
• Robust against injected currents and network cable shorts to ground or battery
• Simple low cost bus interface network
• Single 3.3V supply with integrated 1.8V regulator
• Small footprint 24-pin (4×4 mm), 32-pin (5×5 mm), and 36-pin (6×6 mm) VQFN packages with wettable flanks
• -40°C to +125°C extended temperature range
• AEC-Q100 qualification
• Functional Safety Support (ISO 26262, ASIL B)
• ISO 26262 compliant development
• Functional Safety Package, including Safety Manual, FMEDA, and Dependent Failure Analysis (DFA)