{"id":3336,"date":"2026-06-01T01:58:29","date_gmt":"2026-06-01T01:58:29","guid":{"rendered":"https:\/\/materialparts.com\/wjlxt971ale-a4-857343\/"},"modified":"2026-06-01T01:58:29","modified_gmt":"2026-06-01T01:58:29","slug":"wjlxt971ale-a4-857343","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/wjlxt971ale-a4-857343\/","title":{"rendered":"WJLXT971ALE.A4-857343"},"content":{"rendered":"

Productos<\/h2>\n

The WJLXT971ALE.A4-857343 from Cortina Systems (formerly Intel) is a single-port 10\/100 Mbps Ethernet PHY transceiver in 64-pin LQFP. It supports 10BASE-T, 100BASE-TX, and 100BASE-FX with MII interface, auto-negotiation, JTAG boundary scan, and integrated LED drivers.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Velocidad de datos<\/td>\n10\/100 Mbps<\/td>\n<\/tr>\n
MAC Interface<\/td>\nMII<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n3.3V (2.5V\/3.3V dual supply)<\/td>\n<\/tr>\n
Power Consumption<\/td>\n300mW typical<\/td>\n<\/tr>\n
Network Support<\/td>\n10BASE-T, 100BASE-TX, 100BASE-FX<\/td>\n<\/tr>\n
Auto-Negotiation<\/td>\nYes (parallel detection)<\/td>\n<\/tr>\n
JTAG Boundary Scan<\/td>\nYes<\/td>\n<\/tr>\n
LED Drivers<\/td>\nIntegrated, programmable<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to 85 C (Extended)<\/td>\n<\/tr>\n
Paquete<\/td>\n64-pin LQFP (10x10mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 3.3V operation with 2.5V\/3.3V dual supply option<\/li>\n
  • 10\/100 Mbps CSMA\/CD or full-duplex operation<\/li>\n
  • MII interface with extended register capability<\/li>\n
  • Auto-negotiation and parallel detection<\/li>\n
  • 100BASE-FX fiber-optic capable (LVPECL)<\/li>\n
  • Integrated programmable LED drivers<\/li>\n
  • JTAG boundary scan<\/li>\n
  • Low power consumption (300mW typical)<\/li>\n
  • Low-power sleep mode<\/li>\n
  • IEEE 802.3 compliant<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • 10\/100 Ethernet NICs<\/li>\n
    • Network printers and peripherals<\/li>\n
    • Cable modems and set-top boxes<\/li>\n
    • Industrial Ethernet interfaces<\/li>\n
    • Legacy Intel LXT971A design upgrades<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The WJLXT971ALE.A4-857343 from Cortina Systems (formerly Intel) is a single-port 10\/100 Mbps Ethernet PHY transceiver in 64-pin LQFP. It supports 10BASE-T, 100BASE-TX, and 100BASE-FX with MII interface, auto-negotiation, JTAG boundary scan, and integrated LED drivers. Key Specifications Data Rate 10\/100 Mbps MAC Interface MII Supply Voltage 3.3V (2.5V\/3.3V dual supply) Power Consumption 300mW […]<\/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":[201],"class_list":["post-3336","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-cortina"],"acf":{"brief_explanation":"10\/100 Ethernet PHY, MII, 100BASE-FX, auto-negotiation, 64-LQFP","date_code":"","package_case":"64-LQFP (10.0 x 10.0 x 1.4 mm, 0.5mm pitch)","in_stock":3192,"datasheet":"https:\/\/www.intel.com\/content\/dam\/www\/programmable\/us\/en\/pdfs\/literature\/ds\/lxt971a.pdf","price":"$5.20 @ 1ku","product_introduction":"The WJLXT971ALE.A4-857343 from Cortina Systems (originally Intel) is a single-port 10\/100 Mbps Ethernet PHY transceiver supporting 10BASE-T, 100BASE-TX, and 100BASE-FX. Features MII interface, auto-negotiation with parallel detection, JTAG boundary scan, and integrated LED drivers. The ALE variant provides extended temperature range (-40 to 85 C). Low 300mW power consumption with sleep mode.","working_principle":"Provides the physical layer between the MAC controller and the network medium. In 100BASE-TX mode, uses 4B\/5B encoding with MLT-3 signaling. In 10BASE-T, Manchester encoding is used. 100BASE-FX is supported via LVPECL interface. Auto-negotiation determines link speed and duplex by exchanging FLP bursts. The MII interface transfers nibble-wide data between PHY and MAC at 25MHz (100Mbps) or 2.5MHz (10Mbps). Intel waveshaping technology reduces external EMI filter requirements.","pin_description":"
      Pin Group<\/th>Type<\/th>Function<\/th><\/tr>
      TXD[3:0], TX_EN, TX_CLK<\/td>MII Output<\/td>MII transmit data and control<\/td><\/tr>
      RXD[3:0], RX_DV, RX_CLK<\/td>MII Input<\/td>MII receive data and control<\/td><\/tr>
      CRS, COL<\/td>MII Output<\/td>Carrier sense, collision<\/td><\/tr>
      MDIO, MDC<\/td>Management<\/td>Serial management interface<\/td><\/tr>
      TXP, TXN<\/td>Analog Out<\/td>Differential transmit pair<\/td><\/tr>
      RXP, RXN<\/td>Analog In<\/td>Differential receive pair<\/td><\/tr>
      LED[2:0]<\/td>Output<\/td>Programmable LED drivers<\/td><\/tr><\/table>","application_scenarios":"
      • Embedded 10\/100 Ethernet connectivity for industrial controllers<\/li>
      • Network interface cards with 100BASE-FX fiber option<\/li>
      • Cable modem and set-top box Ethernet front-end<\/li>
      • Legacy system upgrades using Intel LXT971A design<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>KSZ8041TLI-TR<\/td>TQFP-48<\/td>10\/100 PHY, MII\/RMII\/SMII<\/td><\/tr>
        TI<\/td>DP83848JVVB<\/td>QFP-48<\/td>10\/100 PHY, MII\/RMII<\/td><\/tr>
        Realtek<\/td>RTL8201CP<\/td>QFP-48<\/td>10\/100 PHY, compatible<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=3336"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3336\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3336"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}