BCM5325EKQMG Ethernet Switches IC

Product Description

The BCM***5E is a six-port *0/**0BASE-T/TX integrated switch targeted at cost-sensitive Fast Ethernet managed switch systems. The device contains five fullduplex *0BASE-T/**0BASE-TX Fast Ethernet transceivers, each of which performs all of the physical layer interface functions for *0BASE-T Ethernet on CAT 3, 4, or 5 unshielded twisted-pair (UTP) cable and **0BASE-TX Fast Ethernet on CAT 5 UTP cable. **0BASE-EFX is supported through the use of external fiber optic transceivers.

The BCM***5E device provides a very highly integrated solution. It combines all of the functions of a high-speed switch system, including packet buffer, transceivers, media access controllers (MACs), address management and a non-blocking switch controller, into a single monolithic 0.**-µm CMOS device. It complies with the IEEE **2.3, **2.3u, and **2.3x specifications, including the MAC control Pause frame and auto-negotiation subsections, providing compatibility with all industrystandard Ethernet and Fast Ethernet devices. This function requires only a small low-cost microcontroller to initialize and configure the device

Features
• Six-port, *0/**0 Mbps integrated switch controller—fully non-blocking configuration
• Five integrated *0/**0BASE-T/TX/EFX IEEE **2.3u  compliant transceivers.
• Integrated full-duplex capable IEEE **2.3x-compliant  MACs
• *4 KB on-chip packet buffer
• Media Independent Interface (MII) provided for an additional TX/FX uplink to PHY or MAC.
• Integrated address management—supports up to 1K  unicast addresses
• Port mirroring and Layer*3 IGMP snooping
• IEEE **2.1p QoS packet classification with four  priority queues and DiffServ DSCP priorities in IPv4 and IPv6
• *6 entries IEEE **2.1q-based and Port-based VLAN
• Supports IEEE **2.1x EAPOL higher layer protocol
• EEPROM (*3C*6) allows further un-managed capabilities
• **-MHz crystal or oscillator
• Low-power 3.3/1.8V, 0.*8 µm CMOS technology
• HP auto-MDIX function hardware selectable
• ***-pin MQFP package.
• Ingress/egress rate control
• Pin compatible with BCM***5
• Protected port capability
• DTE/DPM power over Ethernet detection