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Datasheet Microchip KSZ9477STXI

Part NumberKSZ9477STXI

The KSZ9477 is a fully integrated layer 2, managed, seven-port gigabit Ethernet switch with numerous advanced features


  • Download » Datasheet, PDF, 1.9 Mb, 03-10-2017
    KSZ9477S 7-Port Gigabit Ethernet Switch with Ring Redundancy, SGMII and RGMII/MI
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    7-Port Gigabit Ethernet Switch with Ring Redundancy,
    SGMII and RGMII/MII/RMII Interfaces
    Highlights One port with 10/100/1000 Ethernet MAC
    and SGMII interface One port with 10/100/1000 Ethernet MAC
    and configurable RGMII/MII/RMII interface EtherSynch® with full support for IEEE 1588v2
    Precision Time Protocol (PTP) IEEE 802.1AS/Qav Audio Video Bridging (AVB) IEEE 802.1X access control support Five ports with integrated 10/100/1000BASE-T PHY
    transceivers w/ optional Quiet-WIRE® EMC filtering Non-blocking wire-speed Ethernet switching fabric Full-featured forwarding and filtering control, including Access Control List (ACL) filtering Full VLAN and QoS support EtherGreen™ power management features,
    including low power standby Flexible management interface options: SPI, I2C,
    MIIM, and in-band management via any port Industrial temperature range support 128-pin TQFP-EP (14 x 14mm) RoHS compliant pkg Target Applications Industrial Ethernet (Profinet, MODBUS, Ethernet/IP)
    Real-time Ethernet networks
    IEC 61850 networks w/ power substation automation
    Industrial control/automation switches
    Networked measurement and control systems
    Test and measurement equipment Features Switch Management Capabilities
    -10/100/1000Mbps Ethernet switch basic functions:
    frame buffer management, address look-up table,
    queue management, MIB counters
    -Non-blocking store-and-forward switch fabric assures
    fast packet delivery by utilizing 4096 entry forwarding
    table with 256kByte frame buffer
    -Jumbo packet support up to 9000 bytes
    -Port mirroring/monitoring/sniffing: ...



Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)




# Ethernet Ports7
Automotive GradeNo
Cable DiagnosticsYes
Ethernet Bandwidth10/100/1000Mbps
Fiber SupportNo
IEEE 1588Yes
Interrupt PinYes
On-Chip TerminationYes
Op. Voltage3.3 V
Operating Temperature Range-40 to +85 °C
Temp Range Max.(° C)85
Temp Range Min.(° C)-40
Vdd I/O1.8/2.5/3.3 V

Eco Plan


Moldel Line

Series: KSZ9477 (2)

Manufacturer's Classification

  • High-Speed Networking and Video > Ethernet > Ethernet Switches
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