Microchip Technology LAN8670/1/2 10BASE-T1S Ethernet PHY Transceivers
Microchip Technology LAN8670/1/2 10BASE-T1S Ethernet PHY Transceivers are compact, low-power, single-port 10BASE-T1S Ethernet physical layer transceivers. The devices are designed according to the IEEE Std 802.3cg-2019™ specification. The device provides 10Mbit/s half-duplex transmit and receive capability over a single-balanced pair medium like Unshielded Twisted Pair (UTP) cable. The LAN8670/1/2 is designed for use in applications requiring an extended temperature range (-40°C to +125°C). The device is also compliant with industrial EMC and EMI requirements. The single power supply and simple analog front end simplify its integration into small form factor applications.
Features
- High-performance 10BASE-T1S Ethernet PHY
- Designed according to IEEE Std 802.3cg-2019™
- 10Mbit/s over single balanced pair
- Half-duplex point-to-point link segments up to at least 15m
- Half-duplex multidrop mixing segments up to at least 25m with up to at least 8 PHYs
- Media Independent Interface (MII) and Reduced Media Independent Interface (RMII)
- 2.5MHz MII clock mode
- 50MHz RMII clock mode
- Serial Management Interface (SMI) for rapid register access
- Comprehensive status interrupt support
- Carrier Sense Multiple Access / Collision Detection (CSMA/CD) media access control
- -40°C to +125°C extended temperature range
- 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
- Low RF emissions
- Robust against injected currents and network cable shorts to ground or battery
- Simple low-cost analog front-end
- Single 3.3V supply with an integrated 1.8V regulator
- Small footprint VQFN packaging with wettable flanks
- LAN8670 32-pin (5mm x 5mm)
- LAN8671 24-pin (4mm x 4mm)
- LAN8672 36-pin (6mm x 6mm)
- Microchip functional safety ready
Applications
- Sensor/actuator networks operating at high bandwidth
- Microphone networks delivering audio streams for beamforming and hands-free microphones
- Backplane communication
- Industrial control cabinets and machine control
- Building automation
Evaluation Boards
Microchip Technology EVB-LAN8670-RMII Evaluation Board
Enables 10BASE-T1S Ethernet communication.
System-Level Block Diagram
Internal Block Diagram
Publicado: 2021-08-12
| Actualizado: 2024-03-11