{"id":3562,"date":"2026-06-06T10:40:34","date_gmt":"2026-06-06T10:40:34","guid":{"rendered":"https:\/\/materialparts.com\/ksz8863mll\/"},"modified":"2026-06-06T10:40:34","modified_gmt":"2026-06-06T10:40:34","slug":"ksz8863mll","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ksz8863mll\/","title":{"rendered":"KSZ8863MLL"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The KSZ8863MLL from Microchip Technology is a 3-port 10\/100 managed Ethernet switch IC with two integrated 10\/100BASE-T\/TX PHYs and one MII interface for CPU connection. It features IEEE 802.1q VLAN, QoS\/CoS prioritization, IGMP snooping, and advanced power management in a 48-pin LQFP (7x7mm) package.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0646\u0648\u0639<\/td>\n3-Port 10\/100 Managed Ethernet Switch<\/td>\n<\/tr>\n
Ports<\/td>\n2x 10\/100BASE-T\/TX PHY + 1x MII<\/td>\n<\/tr>\n
VLAN<\/td>\nIEEE 802.1q, up to 16 groups<\/td>\n<\/tr>\n
QoS<\/td>\n802.1p, DiffServ, IPv4\/IPv6<\/td>\n<\/tr>\n
MAC Address Table<\/td>\n1K entries<\/td>\n<\/tr>\n
Management<\/td>\nSMI, SPI, I2C, MIIM interfaces<\/td>\n<\/tr>\n
Flow Control<\/td>\nIEEE 802.3x full-duplex, back-pressure half-duplex<\/td>\n<\/tr>\n
Power Management<\/td>\nEnergy detect, per-port power down, bypass mode<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n3.3V (single, internal 1.8V LDO)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nLQFP-48 (7 x 7 mm)<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 3-port non-blocking switch fabric with 1K MAC address table<\/li>\n
  • IEEE 802.1q VLAN support for up to 16 groups<\/li>\n
  • QoS with 802.1p and DiffServ-based prioritization, 4 priority levels<\/li>\n
  • IGMP snooping for IPv4 multicast packet filtering<\/li>\n
  • HP Auto MDI-X for automatic crossover cable correction<\/li>\n
  • LinkMD TDR-based cable diagnostics<\/li>\n
  • Bypass mode: sustains switch between Port 1 and 2 when CPU sleeps<\/li>\n
  • Tail tag mode for CPU port identification of ingress port and priority<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • VoIP phones and IP-PBX systems<\/li>\n
    • Industrial Ethernet with managed switching<\/li>\n
    • IPTV set-top boxes and residential gateways<\/li>\n
    • Automotive Ethernet networks<\/li>\n
    • SOHO managed switches with QoS<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The KSZ8863MLL from Microchip Technology is a 3-port 10\/100 managed Ethernet switch IC with two integrated 10\/100BASE-T\/TX PHYs and one MII interface for CPU connection. It features IEEE 802.1q VLAN, QoS\/CoS prioritization, IGMP snooping, and advanced power management in a 48-pin LQFP (7x7mm) package. Key Specifications Type 3-Port 10\/100 Managed Ethernet Switch 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-3562","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-microchip"],"acf":{"brief_explanation":"3-port 10\/100 managed Ethernet switch, 2x PHY + MII, VLAN, QoS, LQFP-48","date_code":"","package_case":"LQFP-48 (7.0 x 7.0 x 1.40 mm)","in_stock":3303,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/KSZ8863MLL-FLL-RLL-DS00002335B.pdf","price":"$4.10 @ 1ku","product_introduction":"The KSZ8863MLL from Microchip Technology is a highly integrated 3-port 10\/100 managed Ethernet switch with two 10\/100BASE-T\/TX PHYs and one MII host interface. It provides advanced Layer 2 switching features including IEEE 802.1q VLAN (up to 16 groups), 802.1p\/DiffServ QoS with four priority levels, IGMP snooping, and broadcast storm protection. The 1K MAC address lookup table with store-and-forward architecture ensures non-blocking wire-speed switching. Advanced power management includes energy-detect mode, per-port software power down, and a unique bypass mode that maintains switching between the two PHY ports even when the connected CPU is in sleep mode.","working_principle":"The KSZ8863MLL integrates three MAC controllers and two 10\/100 PHY transceivers. Port 1 and Port 2 connect to external RJ-45 jacks through the integrated PHYs, while Port 3 provides an MII interface to an external CPU. The switch fabric uses a store-and-forward architecture: incoming packets are fully received and validated before being forwarded. The 1K MAC address table is learned dynamically and supports static entries. VLAN tagging follows IEEE 802.1q with per-port tag insertion\/removal on egress. QoS classification uses port-based default priority, 802.1p priority field, and DiffServ\/TOS field in the IP header, each mappable to one of four priority queues per port. The tail tag feature appends a 1-byte tag to packets forwarded to the CPU port, indicating the ingress port number and packet priority.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      VDD<\/td>4<\/td>Power<\/td>3.3V digital supply<\/td><\/tr>
      VDDA_3.3<\/td>4<\/td>Power<\/td>3.3V analog\/transceiver supply<\/td><\/tr>
      VDDIO<\/td>2<\/td>Power<\/td>I\/O supply (1.8\/2.5\/3.3V)<\/td><\/tr>
      GND<\/td>8<\/td>Ground<\/td>Ground<\/td><\/tr>
      TXP1\/TXN1<\/td>2<\/td>I\/O<\/td>Port 1 PHY transmit +\/-<\/td><\/tr>
      RXP1\/RXN1<\/td>2<\/td>I\/O<\/td>Port 1 PHY receive +\/-<\/td><\/tr>
      TXP2\/TXN2<\/td>2<\/td>I\/O<\/td>Port 2 PHY transmit +\/-<\/td><\/tr>
      RXP2\/RXN2<\/td>2<\/td>I\/O<\/td>Port 2 PHY receive +\/-<\/td><\/tr>
      MII<\/td>12<\/td>I\/O<\/td>MII interface to CPU<\/td><\/tr>
      SPI\/I2C\/SMI<\/td>6<\/td>I\/O<\/td>Management interface pins<\/td><\/tr>
      LED\/STRAP<\/td>4<\/td>I\/O<\/td>LED indicators \/ config strapping<\/td><\/tr><\/table>","application_scenarios":"
      • VoIP phones: 2-port Ethernet + MII to VoIP processor with QoS<\/li>
      • Industrial Ethernet: Managed switching with VLAN isolation and IGMP snooping<\/li>
      • Residential gateways: IPTV with multicast filtering and priority queuing<\/li>
      • Automotive: In-vehicle 10\/100 Ethernet switching with bypass mode<\/li>
      • SOHO switches: Cost-effective 2+1 managed switch with MII uplink<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>KSZ8863RLL<\/td>LQFP-48<\/td>RMII interface instead of MII<\/td><\/tr>
        Microchip<\/td>KSZ8863FLL<\/td>LQFP-48<\/td>1x 100BASE-FX + 1x 10\/100 + MII<\/td><\/tr>
        Microchip<\/td>KSZ8857MLI<\/td>QFN-64<\/td>5-port 10\/100 managed switch<\/td><\/tr>
        TI<\/td>DP83869HM<\/td>WQFN-48<\/td>10\/100\/1000 Ethernet PHY<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=3562"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3562\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3562"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3562"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}