{"id":5785,"date":"2026-06-11T05:29:53","date_gmt":"2026-06-11T05:29:53","guid":{"rendered":"https:\/\/materialparts.com\/bcm5248ua4kqmg-p14\/"},"modified":"2026-06-11T06:58:53","modified_gmt":"2026-06-11T06:58:53","slug":"bcm5248ua4kqmg-p14","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/bcm5248ua4kqmg-p14\/","title":{"rendered":"BCM5248UA4KQMG P14"},"content":{"rendered":"

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

The BCM5248UA4KQMG P14 from Broadcom is a single-port 10\/100 Ethernet PHY transceiver with RGMII\/MII interface, auto-negotiation, and IEEE 802.3 compliance in QFN-40 for embedded networking.<\/p>\n

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Speed<\/td>\n10\/100 Mbps<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nRGMII\/MII<\/td>\n<\/tr>\n
Auto-Negotiation<\/td>\nYes<\/td>\n<\/tr>\n
Supply<\/td>\n3.3V<\/td>\n<\/tr>\n
Temp<\/td>\n-40~85C<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • 10\/100 Ethernet PHY<\/li>\n
  • RGMII\/MII MAC interface<\/li>\n
  • Auto-negotiation<\/li>\n
  • HP Auto-MDIX<\/li>\n
  • IEEE 802.3 compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Embedded networking<\/li>\n
    • Industrial Ethernet<\/li>\n
    • Networked appliances<\/li>\n
    • IoT gateways<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BCM5248UA4KQMG P14 from Broadcom is a single-port 10\/100 Ethernet PHY transceiver with RGMII\/MII interface, auto-negotiation, and IEEE 802.3 compliance in QFN-40 for embedded networking. Key Specifications Speed 10\/100 Mbps Interface RGMII\/MII Auto-Negotiation Yes Supply 3.3V Temp -40~85C Features 10\/100 Ethernet PHY RGMII\/MII MAC interface Auto-negotiation HP Auto-MDIX IEEE 802.3 compliant Applications Embedded […]<\/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":[198],"class_list":["post-5785","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-broadcom"],"acf":{"brief_explanation":"10\/100 Ethernet PHY, RGMII\/MII, QFN-40","date_code":"","package_case":"QFN-40 (6x6mm)","in_stock":12624,"datasheet":"https:\/\/www.broadcom.com\/products\/ethernet-connectivity\/embedded-phy","price":"$3.50 @ 1ku","product_introduction":"The BCM5248UA4KQMG P14 from Broadcom is a single-port 10\/100 Ethernet PHY transceiver with RGMII\/MII interface, auto-negotiation, and IEEE 802.3 compliance in QFN-40 for embedded networking.","working_principle":"The BCM5248UA4KQMG is a 10\/100 Ethernet PHY transceiver from Broadcom in QFN-40 (P14 revision). It implements the physical layer of the OSI model, connecting the MAC layer to the physical medium via the RGMII (Reduced Gigabit Media Independent Interface) or MII (Media Independent Interface). The transmitter takes 4-bit parallel data from the RGMII, performs 4B\/5B encoding, scrambles the data to reduce EMI, and drives the differential MDI pair (TXP\/TXN) through an internal DAC. The receiver recovers clock from the incoming signal using a digital PLL, equalizes the signal to compensate for cable loss, decodes 5B\/4B, and presents data to the MAC via RGMII. Auto-negotiation (IEEE 802.3u) exchanges link capabilities with the link partner to select the highest common speed and duplex. The MIIM interface provides register access for configuration and status monitoring, supporting Clause 22 management. Internal loopback modes aid diagnostics.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VDDA<\/td>Power<\/td>Analog 3.3V supply<\/td><\/tr>
      2<\/td>TXD0\/1\/2\/3<\/td>I\/O<\/td>RGMII transmit data bits 0-3<\/td><\/tr>
      3<\/td>TXC<\/td>I\/O<\/td>RGMII transmit clock<\/td><\/tr>
      4<\/td>TXCTL<\/td>I\/O<\/td>RGMII transmit control<\/td><\/tr>
      5<\/td>RXD0\/1\/2\/3<\/td>I\/O<\/td>RGMII receive data bits 0-3<\/td><\/tr>
      6<\/td>RXC<\/td>I\/O<\/td>RGMII receive clock<\/td><\/tr>
      7<\/td>RXCTL<\/td>I\/O<\/td>RGMII receive control<\/td><\/tr>
      8<\/td>CLK_25M<\/td>I\/O<\/td>25MHz reference clock I\/O<\/td><\/tr>
      9<\/td>MDC<\/td>Input<\/td>MIIM management clock<\/td><\/tr>
      10<\/td>MDIO<\/td>I\/O<\/td>MIIM management data<\/td><\/tr>
      11<\/td>INT<\/td>Output<\/td>Interrupt output<\/td><\/tr>
      12-40<\/td>VDDIO\/GND\/LED\/TXP\/TXN\/RXP\/RXN<\/td>Power\/Analog<\/td>Power, ground, LED, and MDI pins<\/td><\/tr><\/table>","application_scenarios":"
    • Embedded networking<\/li>
    • Industrial Ethernet<\/li>
    • Networked appliances<\/li>
    • IoT gateways<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Broadcom<\/td>BCM5221KQMG<\/td>QFN-40<\/td>10\/100 PHY, similar feature set<\/td><\/tr>
      Realtek<\/td>RTL8201F-VB-CG<\/td>QFN-32<\/td>10\/100 PHY, RGMII\/MII<\/td><\/tr>
      Microchip<\/td>KSZ8081MNXIA<\/td>QFN-24<\/td>10\/100 PHY, compact<\/td><\/tr>
      Texas Instruments<\/td>DP83848JVVB<\/td>LQFP-40<\/td>10\/100 PHY, MII\/RMII<\/td><\/tr>
      Analog Devices<\/td>ADIN1300CCPZ<\/td>LQFP-48<\/td>10\/100\/1000 PHY, industrial<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5785","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=5785"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5785\/revisions"}],"predecessor-version":[{"id":5935,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5785\/revisions\/5935"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5785"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5785"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}