Microchip's LAN9352/LAN9352i is a high-performance, small-footprint, full-featured 2-port managed Ethernet switch. This device is application-optimized for consumer, embedded and Industrial?designs which require a highly integrated, cost effective device with switching functionality, flexibility and ease of integration.
Featuring a small form factor 2-port switch, the LAN9352/9352i supports compact PCB design and with 2 Integrated PHY's .??LAN9352 extends the definition of the LAN9353 by replacing the Port 0 MII/RMII/Turbo MII interface with a full featured Ethernet MAC accessible through a high-performance host bus or SPI/
SQI Interface?.The Host MAC incorporates the essential protocol requirements for operating an Ethernet/IEEE 802.3-compliant node and provides an interface between the Host Bus Interface (HBI) and the Ethernet PHYs and Switch Fabric. The device communicates with the microcontroller through an SRAM-like slave interface. The simple, yet highly functional host bus interface provides a glue-less connection to most common 8 or 16-bit microprocessors and microcontrollers as well as 32-bit microprocessors with an 8 or 16-bit external bus. Alternatively, the device can be accessed via SPI/SQI . The Host MAC interfaces with the 10/100 Ethernet PHY’s (Virtual PHY, Port 1 PHY, Port 2 PHY) via an internal SMI (Serial Management Interface) bus .

IEEE 1588-2008 is supported via the integrated IEEE 1588-2008 hardware time stamp unit, which supports end-to-end and peer-to-peer transparent clocks. The LAN9352 complies with the IEEE 802.3 (full/half-duplex 10BASE-T and 100BASE-TX) Ethernet protocol, IEEE 802.3az Energy Efficient Ethernet (EEE) (100Mbps only), and 802.1D/802.1Q network management protocol specifications, enabling compatibility with industry standard Ethernet and Fast Ethernet applications. 100BASE-FX is supported via an external fiber transceiver.

The LAN9352/9352i switch combines all of the functions of a 10/100 system, including the switch fabric, packet buffers, buffer management, MACs, PHY transceivers and optional serial management functions. Both versions of the device comply with IEEE 802.3 10BASE-T and 100BASE-TX Ethernet protocol specifications, enabling compatibility with industry standard Ethernet and Fast Ethernet applications. Supports Fiber Interface through SFP and SFF Physical medium

Microchip's complimentary and confidential LANCheck? online design review service is available for customers who have selected our products for their application design-in*.

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Highlights

  IEEE 1588-2008 Hardware Time Stamping Unit

  IEEE 802.3az Energy Efficient Ethernet

  Wake On LAN

  Cable Diagnostics????

  ?High-performance, full-featured 2-port switch with per-port IEEE 802.1Q VLAN support (up to 16 VLAN groups)

  ?IGMP v1/v2 monitoring for multicast packet filtering

  ?Optional EEPROM or external CPU serial management support via an I2C? interface

  Virtual PHY feature simplifies software development by mimicking multiple switch ports as a single-port PHY

  Integrated 1.2V regulator?for a single 3.3V supply

  Supports Fiber Interface through SFP and SFF Physical medium? ???

  42 per-port MIB counters for efficient network management

  Industrial temperature (-40° to 85°C) options available (LAN9352i)

?Package options:

  LAN9352: 10x10mm, 0.5mm pitch 72-pin SQFN package?

  LAN9352: 12x12mm, 0.5mm pitch 80-pin TQFP-EP package?

Target Applications

  Cable, Satellite, and IP Set-top Boxes (STBs)

  Digital Televisions (DTVs)

  Digital/Personal Video Recorders (DVRs/PVRs)

  VoIP/Video Phone Systems

  Building Automation

  Security and Surveillance

  Home Gateways/Consumer Audio/Video

  Test/Measurement Equipment

  Industrial Automation and Control