AR8327N

Data Sheet June 2011 Version 1.0 AR8327/AR8327N Seven-port Gigabit Ethernet Switch General Description The AR8327 is a highly integrated seven-port Gigabit Ethernet switch with non-blocking switch fabric, a high-performance lookup unit with 2048 MAC address, and a four-traffic class Quality of Service (QoS) engine. The AR8327 has the flexibility to support various networking applications. The AR8327 is designed for costsensitive switch applications in wireless AP routers, home gateways, and xDSL/cable modem platforms. The AR8327 integrates all the functions of a high-speed Switch system, including packet buffer, PHY transceivers, media access controllers, address management, and a nonblocking switch fabric into a single 0.11 um CMOS device. It complies with 10BASE-Te, 100BASE-Tx & 1000BASE-T specifications, including the MAC control, pause frame, and auto-negotiation subsections, providing compatibility with all industry-standard Ethernet, Fast Ethernet & Gigabit Ethernet networks. The AR8327 device contains five full-duplex 10BASE-Te/100BASE-TX/1000BASE-T transceivers and 10BASE-Te/100BASE-TX can run at half duplex, each of which performs all of the physical layer interface functions for 10BASE-Te Ethernet on Category 5 unshielded twisted-pair (UTP) cable and 100BASE-TX Fast/Gigabit Ethernet on Category 5 UTP cable. The remaining 2 ports feature a standard GMII/RGMII/MII/Serdes interface to allow connection to a host CPU in PON/xDSL/ Cable/Wifi/Fiber routers. The media acce...