Microchip Technology LAN937x Gigabit Ethernet Switches

Microchip Technology LAN937x Gigabit Ethernet Switches are scalable, compact 100BASE-T1 Ethernet Gigabit switches based on the IEEE 802.3bw-2015 specification.

The LAN9370 is a 5-Port Layer-2+ managed switch, incorporating four 100BASE-T1 PHYs and a single MAC port, configurable to RGMII/MII/RMII. The LAN9371 is a 6-Port Layer-2+ managed switch comprised of three 100BASE-T1 PHYs, one 100BASE-TX PHY, and two MAC ports, configurable to RGMII/MII/RMII. The LAN9372 is an 8-Port Layer-2+ managed switch, including five 100BASE-T1 PHYs, one 100BASE-TX PHY, and two MAC ports, configurable to RGMII/MII/RMII. The LAN9373 is an 8-Port Layer-2+ managed switch containing five 100BASE-T1 PHYs, two MAC ports configurable to RGMII/MII/RMII, and an SGMII port. The LAN9374 is an 8-Port Layer-2+ managed switch, merging six 100BASE-T1 PHYs and two MAC ports, configurable to RGMII/MII/RMII.

The LAN937x are offered in a Grade 2 Automotive (-40°C to +105°C) temperature range and are AEC-Q100 qualified for automotive use cases such as gateways, Automated Driver-Assistance Systems (ADAS), infotainment, telematics, and in-vehicle networking. The switches are also provided in an industrial temperature version (-40°C to +85°C), ideal for non-automotive applications, such as industrial vehicles, automation, robotics, and transportation.

The LAN937x fully supports IEEE Audio Video Bridging (AVB) and key TSN (Time Sensitive Networking) standards, which supply high Quality of Service (QoS) for latency-sensitive traffic streams over Ethernet, including:

• IEEE 802.1AS time synchronization
• IEEE 802.Qat Stream Reservation
• IEEE 802.Qav traffic shaping
• IEEE 802.1Qbv (TSN) time-aware scheduler
• IEEE 802.1Qci (TSN) ingress filtering and policing

A rich assortment of EtherGREEN™ energy efficiency features are delivered, including Open Alliance TC10 sleep/wakeup partial networking, non-TC10 link partner energy detect wakeup, and ultra-deep-sleep power.

Features

  • Comprehensive interfaces
    • 3x Integrated 100BASE-T1 PHYs
    • Extended cable reach
    • 1x 100BASE-TX PHY, 2x RGMII/RMII/MII ports
    • Cascade mode for the high port count
    • System Reference output clocks
    • Time-aware precision GPIO
    • SPI or in-band host processor access
  • Switch management
    • AVB / TSN support
    • Eight shapers per port, one for each queue
    • Deep Packet Inspection (DPI) using TCAM
    • TCAM classification of Layers 2, 3, 4, and beyond
    • High Available Seamless Redundancy (HSR)
    • OPEN Alliance TC11 support
    • Smart low-latency cut-through forwarding mode
  • Environmental and diagnostics
    • OPEN Alliance TC10 support
    • FlexPWR technology power management
    • Over-temperature and under-voltage detection
    • LinkMD®+ cable diagnostic capabilities
    • AEC-Q100 Grade 2 automotive qualified (-40°C to +105°C)

Applications

  • Advanced Driver-Assistance Systems (ADAS)
  • Infotainment
  • Telematics and smart antennas
  • In-vehicle backbone
  • Gateways

LAN9370 Block Diagram

Block Diagram - Microchip Technology LAN937x Gigabit Ethernet Switches

LAN9371 Block Diagram

Block Diagram - Microchip Technology LAN937x Gigabit Ethernet Switches

LAN9372/3/4 Block Diagram

Block Diagram - Microchip Technology LAN937x Gigabit Ethernet Switches

Microchip Technology LAN937x Gigabit Ethernet Switches