{"id":5728,"date":"2026-06-11T04:13:34","date_gmt":"2026-06-11T04:13:34","guid":{"rendered":"https:\/\/materialparts.com\/lan8720ai-cp\/"},"modified":"2026-06-12T03:07:33","modified_gmt":"2026-06-12T03:07:33","slug":"lan8720ai-cp","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lan8720ai-cp\/","title":{"rendered":"LAN8720AI-CP"},"content":{"rendered":"

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The LAN8720AI-CP from Microchip is the industrial-grade (-40~85C) version of the LAN8720A 10\/100 Ethernet PHY with RMII interface and HP Auto-MDIX in QFN-24.<\/p>\n

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\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nQFN-24 (4x4mm)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

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      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LAN8720AI-CP from Microchip is the industrial-grade (-40~85C) version of the LAN8720A 10\/100 Ethernet PHY with RMII interface and HP Auto-MDIX in QFN-24. Key Specifications Package QFN-24 (4x4mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Power management<\/p>","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-5728","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-microchip"],"acf":{"brief_explanation":"10\/100 Ethernet PHY, RMII, industrial, QFN-24","date_code":"","package_case":"QFN-24 (4x4mm)","in_stock":9548,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/LAN8720A","price":"$1.00 @ 1ku","product_introduction":"The LAN8720AI-CP from Microchip is the industrial-grade (-40~85C) version of the LAN8720A 10\/100 Ethernet PHY with RMII interface and HP Auto-MDIX in QFN-24.","working_principle":"The LAN8720AI-CP is a 10\/100 Ethernet PHY (Physical Layer) transceiver from Microchip in QFN-24, with RMII (Reduced Media Independent Interface) to the MAC layer. The -I suffix denotes industrial temperature range (-40C to +85C). The PHY implements the physical layer of IEEE 802.3: it encodes\/decodes 4B\/5B data, scrambles\/descrambles, and drives\/receives differential signals on the twisted-pair cable via the TXP\/TXN and RXP\/RXN pins. An external isolation transformer (magnetics module, typically integrated in the RJ-45 jack) couples the PHY to the cable and provides galvanic isolation. The 25MHz crystal or oscillator on XTAL1\/XTAL2 provides the reference clock; the REF_CLK output (50MHz for RMII) is derived internally and provided to the MCU's MAC controller. The RMII interface uses 7 signals (TXD0\/1, TXEN, RXD0\/1, CRS_DV, REF_CLK) at 50MHz clock, reducing pin count vs the 16-signal MII interface. The MDIO\/MDC management interface allows the MCU to read\/write the PHY's 32 internal registers: configure speed (10\/100), duplex (half\/full), auto-negotiation, loopback, and read link status. The nINT pin can generate interrupts on link state changes. The RBIAS pin connects a 12.1k-ohm resistor to GND to set the PHY transmit bias current. Auto-negotiation detects the link partner's capabilities and selects the highest common speed\/duplex setting. The device consumes 45mW typical at 100Mbps and supports IEEE 802.3az Energy Efficient Ethernet (idle power <10mW).","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VDDCR<\/td>Power<\/td>Internal 1.2V regulator output (connect 2.2uF + 470nF decoupling)<\/td><\/tr>
      2<\/td>VDDIO<\/td>Power<\/td>I\/O supply (1.6-3.6V, typically 3.3V)<\/td><\/tr>
      3<\/td>RXD1\/MODE1<\/td>I\/O<\/td>RMII receive data 1 \/ Mode select 1 (strap at reset)<\/td><\/tr>
      4<\/td>RXD0\/MODE0<\/td>I\/O<\/td>RMII receive data 0 \/ Mode select 0 (strap at reset)<\/td><\/tr>
      5<\/td>VDDA<\/td>Power<\/td>Analog supply (3.3V, connect to VDDIO via ferrite bead)<\/td><\/tr>
      6-8<\/td>TXEN\/TXD0\/TXD1<\/td>Output<\/td>RMII transmit enable\/data<\/td><\/tr>
      9-14<\/td>MDC\/MDIO\/CRS_DV\/REF_CLK\/nRST\/nINT<\/td>I\/O<\/td>MDIO management, carrier sense, reference clock, reset, interrupt<\/td><\/tr>
      15-24<\/td>TXP\/TXN\/RXP\/RXN\/XTAL1\/XTAL2\/RBIAS\/VDD\/EPAD<\/td>RF\/Power<\/td>Ethernet PHY, crystal, bias, power, thermal pad<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Power management<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Microchip<\/td>LAN8720A-CP-TR<\/td>QFN-24<\/td>Commercial grade version<\/td><\/tr>
      Microchip<\/td>LAN8742A-CZ-TR<\/td>QFN-24<\/td>Improved version with energy detect, IEEE 802.3az<\/td><\/tr>
      Texas Instruments<\/td>DP83848CVV<\/td>LQFP-48<\/td>10\/100 PHY, industrial temp, MII\/RMII<\/td><\/tr>
      Realtek<\/td>RTL8201F-VB-CG<\/td>QFN-24<\/td>10\/100 PHY, RMII, very low cost<\/td><\/tr>
      Analog Devices<\/td>ADIN1300BCPZ<\/td>QFN-40<\/td>Gigabit Ethernet PHY, RGMII, industrial<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5728","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=5728"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5728\/revisions"}],"predecessor-version":[{"id":6079,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5728\/revisions\/6079"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5728"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5728"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}