{"id":7061,"date":"2026-06-23T03:14:41","date_gmt":"2026-06-23T03:14:41","guid":{"rendered":"https:\/\/materialparts.com\/rtl8309ni-cg\/"},"modified":"2026-06-23T03:14:41","modified_gmt":"2026-06-23T03:14:41","slug":"rtl8309ni-cg","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/rtl8309ni-cg\/","title":{"rendered":"RTL8309NI-CG"},"content":{"rendered":"

Productos<\/h2>\n

The RTL8309NI-CG from Realtek is a single-chip 9-port 10\/100 Ethernet switch controller integrating nine 10\/100BASE-TX PHYs with MACs and a non-blocking switching fabric. Supporting 9.6 Gbps switching capacity, QoS, VLAN, and MIB counters in a 256-pin LQFP package, it enables compact and cost-effective Ethernet switch designs for SOHO and industrial applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n
Number of Ports<\/td>\n9 (10\/100BASE-TX)<\/td>\n<\/tr>\n
Switching Capacity<\/td>\n9.6 Gbps (full-duplex)<\/td>\n<\/tr>\n
MAC Address Table<\/td>\n8K entries<\/td>\n<\/tr>\n
VLAN Support<\/td>\n802.1Q, 4K entries<\/td>\n<\/tr>\n
QoS Queues<\/td>\n4 per port<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n3.3 V (core 1.2V internal)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n0C to +70C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Nine integrated 10\/100 PHYs with auto-negotiation and auto-MDIX<\/li>\n
  • Non-blocking wire-speed switching fabric<\/li>\n
  • 8K MAC address table with aging support<\/li>\n
  • 802.1Q VLAN with 4K entries and port-based classification<\/li>\n
  • 4 priority queues per port for QoS<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Unmanaged and smart 9-port Ethernet desktop switches<\/li>\n
    • SOHO network switch appliances<\/li>\n
    • Industrial Ethernet switching equipment<\/li>\n
    • IP surveillance network switches<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The RTL8309NI-CG from Realtek is a single-chip 9-port 10\/100 Ethernet switch controller integrating nine 10\/100BASE-TX PHYs with MACs and a non-blocking switching fabric. Supporting 9.6 Gbps switching capacity, QoS, VLAN, and MIB counters in a 256-pin LQFP package, it enables compact and cost-effective Ethernet switch designs for SOHO and industrial applications. Key Specifications […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[158],"class_list":["post-7061","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-realtek"],"acf":{"brief_explanation":"9-port 10\/100 Ethernet switch, 9.6Gbps, 8K MAC, 802.1Q VLAN, QoS, LQFP-256","date_code":"","package_case":"LQFP-256 (28 x 28 mm)","in_stock":3800,"datasheet":"https:\/\/www.realtek.com\/en\/products\/communications-network-ics\/item\/rtl8309ni-cg","price":"$4.20 @ 1ku","product_introduction":"The RTL8309NI-CG from Realtek is a high-performance single-chip 9-port 10\/100 Ethernet switch controller designed for unmanaged and lightly managed switch applications. The device integrates nine 10\/100BASE-TX PHY transceivers with MAC controllers and a non-blocking 9.6 Gbps switching fabric in a single 256-pin LQFP package. Each port supports auto-negotiation, auto-MDIX, and full\/half duplex operation. The switch supports an 8K-entry MAC address table, 802.1Q VLAN with 4K entries, 4 priority queues per port for QoS, and comprehensive MIB counters for network monitoring.","working_principle":"The RTL8309NI-CG integrates all essential Ethernet switching functions. (1) PHY Layer: Each of the nine 10\/100BASE-TX ports integrates a full PHY transceiver with auto-negotiation and auto-MDIX. (2) MAC Layer: Each port includes an independent MAC controller handling frame reception, transmission, and flow control (IEEE 802.3x). (3) Switching Fabric: A shared-memory non-blocking crossbar fabric provides wire-speed forwarding across all nine ports simultaneously. (4) Address Learning: The 8K-entry MAC address table is dynamically learned from incoming frames with aging timeout and static entry support. (5) VLAN and QoS: The 802.1Q VLAN engine classifies frames based on port, tag, or protocol, while the QoS engine uses 802.1p priority or DSCP classification to assign frames to priority queues.","pin_description":"
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-9<\/td>TXP0-8\/TXN0-8<\/td>Analog<\/td>Differential transmit pairs per port<\/td><\/tr>
      10-18<\/td>RXP0-8\/RXN0-8<\/td>Analog<\/td>Differential receive pairs per port<\/td><\/tr>
      19<\/td>VDD33<\/td>Power<\/td>3.3V I\/O supply<\/td><\/tr>
      20<\/td>MDIO<\/td>I\/O<\/td>Management data I\/O (SMI)<\/td><\/tr>
      21<\/td>MDC<\/td>Input<\/td>Management data clock<\/td><\/tr>
      22<\/td>RESET_N<\/td>Input<\/td>Active low reset<\/td><\/tr><\/table>","application_scenarios":"
      • Unmanaged 9-port desktop and SOHO Ethernet switches<\/li>
      • Smart managed switches with basic VLAN and QoS features<\/li>
      • Industrial Ethernet switching equipment<\/li>
      • IP surveillance and access control network aggregation switches<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Realtek<\/td>RTL8310B-CG<\/td>LQFP-256<\/td>10-port version<\/td><\/tr>
        Microchip<\/td>KS8999<\/td>PQFP-128<\/td>8+1 port 10\/100 switch<\/td><\/tr>
        Realtek<\/td>RTL8370N-VB<\/td>QFN-256<\/td>8-port Gigabit switch<\/td><\/tr>
        Marvell<\/td>88E6095<\/td>QFP-256<\/td>8+2 port managed switch<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7061","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=7061"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7061\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7061"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}