{"id":5471,"date":"2026-06-10T02:30:27","date_gmt":"2026-06-10T02:30:27","guid":{"rendered":"https:\/\/materialparts.com\/ksz9893rnxc-tr\/"},"modified":"2026-06-10T02:30:27","modified_gmt":"2026-06-10T02:30:27","slug":"ksz9893rnxc-tr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ksz9893rnxc-tr\/","title":{"rendered":"KSZ9893RNXC-TR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The KSZ9893RNXC-TR from Microchip Technology is a 3-port managed Gigabit Ethernet switch with two integrated 10\/100\/1000BASE-T PHYs and one RGMII\/MII\/RMII MAC interface in a 64-pin VQFN (8x8mm) package. It features VLAN, QoS, ACL, spanning tree, Wake-on-LAN, IEEE 802.3az EEE, and flexible SPI\/I2C\/MIIM management.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u529f\u80fd<\/td>\n3-port managed Gigabit Ethernet switch<\/td>\n<\/tr>\n
Downstream Ports<\/td>\n3 (2x copper PHY + 1x MAC)<\/td>\n<\/tr>\n
Port Speed<\/td>\n10\/100\/1000 Mbps<\/td>\n<\/tr>\n
Upstream Interface<\/td>\nRGMII \/ MII \/ RMII (configurable)<\/td>\n<\/tr>\n
Copper PHYs<\/td>\n2 x 10\/100\/1000BASE-T<\/td>\n<\/tr>\n
Switching Fabric<\/td>\nNon-blocking, wire-speed<\/td>\n<\/tr>\n
Forwarding Table<\/td>\n4096 entries<\/td>\n<\/tr>\n
Frame Buffer<\/td>\n128 KB<\/td>\n<\/tr>\n
VLAN<\/td>\nIEEE 802.1Q, 128 active VLANs, 4096 VLAN IDs<\/td>\n<\/tr>\n
QoS<\/td>\n4 queues per port, 802.1p, DSCP<\/td>\n<\/tr>\n
ACL<\/td>\nAccess Control List filtering<\/td>\n<\/tr>\n
Spanning Tree<\/td>\nRSTP and MSTP<\/td>\n<\/tr>\n
Wake-on-LAN<\/td>\nYes<\/td>\n<\/tr>\n
EEE<\/td>\nIEEE 802.3az<\/td>\n<\/tr>\n
Jumbo Frame<\/td>\nUp to 9000 bytes<\/td>\n<\/tr>\n
LinkMD Cable Diag<\/td>\nYes<\/td>\n<\/tr>\n
Management<\/td>\nSPI, I2C, MIIM, in-band<\/td>\n<\/tr>\n
Supply Voltages<\/td>\n3.3V, 2.5V, 1.8V (multi-rail)<\/td>\n<\/tr>\n
Supply Current<\/td>\n250 mA typical<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n0 to +70 C (commercial)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nVQFN-64 EP (8.0 x 8.0 x 0.83 mm)<\/td>\n<\/tr>\n
Status<\/td>\n\u6d3b\u8dc3<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 3-port managed Gigabit Ethernet switch<\/li>\n
  • 2 integrated 10\/100\/1000BASE-T PHYs<\/li>\n
  • Configurable RGMII\/MII\/RMII host interface<\/li>\n
  • Full 802.1Q VLAN support (128 active, 4096 IDs)<\/li>\n
  • 4-queue QoS with 802.1p and DSCP<\/li>\n
  • ACL-based filtering and security<\/li>\n
  • RSTP\/MSTP spanning tree protocol<\/li>\n
  • IEEE 802.3az EEE and EtherGreen power management<\/li>\n
  • Wake-on-LAN support<\/li>\n
  • LinkMD cable diagnostics<\/li>\n
  • Jumbo frame support up to 9000 bytes<\/li>\n
  • SPI, I2C, MIIM management interfaces<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial Ethernet switches and gateways<\/li>\n
    • Multi-port embedded networking<\/li>\n
    • Smart home and IoT gateways<\/li>\n
    • Automotive Ethernet (with industrial grade)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The KSZ9893RNXC-TR from Microchip Technology is a 3-port managed Gigabit Ethernet switch with two integrated 10\/100\/1000BASE-T PHYs and one RGMII\/MII\/RMII MAC interface in a 64-pin VQFN (8x8mm) package. It features VLAN, QoS, ACL, spanning tree, Wake-on-LAN, IEEE 802.3az EEE, and flexible SPI\/I2C\/MIIM management. Key Specifications Function 3-port managed Gigabit Ethernet switch Downstream Ports […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[134],"class_list":["post-5471","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-microchip"],"acf":{"brief_explanation":"3-port managed GbE switch, 2x PHY, RGMII, VLAN, QFN-64","date_code":"","package_case":"VQFN-64 Exposed Pad (8.0 x 8.0 x 0.83 mm)","in_stock":1812,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/ksz9893","price":"$8.08 @ 1ku","product_introduction":"The KSZ9893RNXC-TR from Microchip Technology is a 3-port managed Gigabit Ethernet switch in a 64-pin VQFN (8x8mm) exposed pad package. The RNXC denotes the 64-pin VQFN commercial temperature grade package, and -TR denotes tape and reel. The device integrates two 10\/100\/1000BASE-T copper PHYs (ports 1 and 2) and one configurable RGMII\/MII\/RMII MAC interface (port 3) for connection to a host processor or SoC. The non-blocking store-and-forward switching fabric provides wire-speed forwarding with a 4096-entry MAC address table and 128KB frame buffer. Advanced managed features include IEEE 802.1Q VLAN with 128 active VLAN groups, 4-queue QoS based on 802.1p priority and DSCP, ACL-based packet filtering, and RSTP\/MSTP spanning tree for topology management and ring\/linear recovery. EtherGreen power management features include IEEE 802.3az EEE, smart power adjustment based on cable length, and low-power standby modes. Wake-on-LAN enables remote system wakeup. LinkMD cable diagnostics identify cable faults and measure cable length. The flexible management interface supports SPI, I2C, MIIM (MDIO), and in-band management via any switch port, allowing the host to configure and monitor the switch through the most convenient channel.","working_principle":"The KSZ9893RNXC-TR operates through six subsystems: (1) PHY Transceivers: The two integrated 10\/100\/1000BASE-T PHYs handle the physical layer for copper ports, including 4D-PAM5 encoding (1000BASE-T), MLT-3 (100BASE-TX), and Manchester (10BASE-Te). Auto-negotiation selects the highest common speed and duplex. The PHYs include ADCs, DACs, DSP-based equalizers, echo\/NEXT cancellers, and auto-MDIX. (2) MAC Interface: Port 3 provides a configurable RGMII (reduced gigabit MII), MII, or RMII interface to the host processor. RGMII supports 10\/100\/1000Mbps with only 12 pins (4 data + 4 control + clock + control), while MII\/RMII support 10\/100Mbps modes. (3) Switching Fabric: The non-blocking store-and-forward architecture receives complete frames into the 128KB frame buffer, performs MAC address lookup in the 4096-entry table, applies VLAN\/QoS\/ACL rules, and forwards to the destination port(s) at wire speed. (4) VLAN\/QoS Engine: Ingress frames are classified into one of 128 active VLANs and assigned to one of 4 priority queues per port. The ACL engine can filter or redirect frames based on Layer 2-4 header fields. (5) Management: The host configures the switch through SPI, I2C, or MIIM registers. In-band management allows the host to send\/receive management frames through the data path. Tail tagging enables the host to identify the ingress port of received frames. (6) Power Management: IEEE 802.3az EEE reduces power during idle periods. Smart power adjustment scales PHY power based on cable length. Wake-on-LAN detects magic packets and signals the host.","pin_description":"
      Pin Group<\/th>Count<\/th>Type<\/th>Description<\/th><\/tr>
      MDI[1:2]<\/td>16<\/td>Analog<\/td>Copper PHY line-side (2 x 4 pairs)<\/td><\/tr>
      RGMII\/MII\/RMII<\/td>14<\/td>Digital I\/O<\/td>Port 3 MAC interface signals<\/td><\/tr>
      Management<\/td>6<\/td>Digital<\/td>SPI, I2C, MIIM, control\/strap<\/td><\/tr>
      LED<\/td>6<\/td>Output<\/td>Port activity\/speed LED drivers<\/td><\/tr>
      Power\/Ground<\/td>22<\/td>Power<\/td>3.3V, 2.5V, 1.8V supplies, ground<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial Ethernet switch with 2 copper ports and RGMII uplink to an SoC, VLAN isolation between networks, and RSTP ring topology recovery<\/li>
      • Smart home gateway with 2-port GbE switch connecting WAN and LAN, QoS prioritization for VoIP\/video, and Wake-on-LAN for power saving<\/li>
      • Embedded networking module using MII interface to a low-cost MCU, SPI management for configuration, and ACL filtering for network security<\/li>
      • Multi-port IoT edge device with LinkMD cable diagnostics for field troubleshooting, 802.3az EEE for power savings, and jumbo frame support for data transfers<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Ports<\/th>Speed<\/th>Notes<\/th><\/tr>
        KSZ9897RNXI-TR<\/td>Microchip<\/td>5<\/td>1G<\/td>5-port version<\/td><\/tr>
        KSZ8563RNXI-TR<\/td>Microchip<\/td>3<\/td>10\/100<\/td>Fast Ethernet, lower cost<\/td><\/tr>
        LAN9353<\/td>Microchip<\/td>3<\/td>10\/100<\/td>Industrial temp, EtherCAT<\/td><\/tr>
        RTL8367RB-CG<\/td>Realtek<\/td>5+1<\/td>1G<\/td>Higher port count<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=5471"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5471\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5471"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}