Ethernet Switch 5-Port 10Mbps/100Mbps 80-Pin LQFP Tray

The KSZ8765CLX is a highly integrated, Layer 2- managed, five-port switch with numerous features designed to reduce overall system cost. It is intended for cost-sensitive applications requiring four 10/100Mbps copper ports and one 10/100/1000Mbps Gigabit uplink port. The KSZ8765CLX incorporates a small package outline, the lowest power consumption with internal biasing, and on-chip termination. Its extensive set of features include enhanced power management, programmable rate limiting and priority ratio, tagged and port-based VLAN, port-based security and ACL rule-based packet filtering technology, QoS priority with four queues, management interfaces, enhanced MIB counters, high-performance memory bandwidth, and a shared memory based switch fabric with non--blocking support. The KSZ8765CLX provides support for multiple CPU data interfaces to effectively address both current and emerging fast Ethernet and Gigabit Ethernet applications where the Port 5 GMAC can be configured to any of the GMII, RGMII, MII, and RMII modes. The KSZ8765CLX product is built upon Micrel"s industry leading Ethernet"s latest analog and digital technology, with features designed to offload host processing and streamline the overall design.

• The KSZ8765CLX includes all the functions of a 10/100Base-T/TX and 100Base-FX switch system, which combines a switch engine, frame buffer management, address look-up table, queue management, MIB counters, media access controllers (MAC), and PHY transceivers
• non--blocking store-and-forward switch fabric assures fast packet delivery by utilizing 1024-entry forwarding table
• Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port
• MIB counters for fully compliant statistics gathering
  • 36 counters per port
• Hardware support for port-based flush and freeze command in MIB counter
• Multiple loopback of remote, PHY, and MAC modes support for the diagnostics
• Rapid spanning tree support (RSTP) for topology management and ring/linear recovery
• Four integrated IEEE 802.3/802.3u-compliant Ethernet transceivers supporting 10Base-T and 100Base-TX
• 802.1az EEE supported
• On-chip termination resistors and internal biasing for differential pairs to reduce power
• HP Auto MDI/MDI-X™ crossover support eliminates the need to differentiate between straight or crossover cables in applications
• Four internal media access control (MAC1 to MAC4) units and one internal Gigabit media access control (GMAC5) unit
• GMII, RGMII, MII, or RMII interfaces support for the Port 5 GMAC5 with uplink
• 2kb jumbo packet support
• Tail tagging mode (one byte added before FCS) support on Port 5 to inform the processor which ingress port receives the packet and its priority
• Supports reduced media independent interface (RMII) with 50MHz reference clock output
• Supports media independent interface (MII) in either PHY mode or MAC mode on Port 5
• Micrel LinkMD® cable diagnostic capabilities for determining cable opens, shorts, and length