Micrel, Inc. KS8995XA Features • Integrated switch with five MACs and five Fast Ethernet transceivers fully compliant to IEEE 802.3u standard • Shared memory based switch fabric with fully nonblocking configuration • 10BASE-T, 100BASE-TX and 100BASE-FX modes (FX in Ports 4 and 5) • Dual MII configuration: MII-Switch (MAC or PHY mode MII) and MII-P5 (PHY mode MII) • VLAN ID tag/untag options, per-port basis • Enable/disable option for huge frame size up to 1916 bytes per frame • Broadcast storm protection with percent control – global and per-port basis • Optimization for fiber-to-copper media conversion • Full-chip hardware power-down support (register configuration not saved) • Per-port-based software power-save on PHY (idle link detection, register configuration preserved) • QoS/CoS packets prioritization supports: per port, 802.1p and DiffServ-based • 802.1p/q tag insertion or removal on a per-port basis (egress) • Port-based VLAN support • MDC and MDI/O interface support to access the MII PHY control registers (not all control registers) • MII local loopback support • On-chip 64Kbyte memory for frame buffering (not shared with 1K unicast address table) • 1.4Gbps high performance memory bandwidth • Wire-speed reception and transmission • Integrated look-up engine with dedicated 1K unicast MAC addresses • Automatic address learning, address aging and address migration • Full-duplex IEEE 802.3x and half-duplex back pressure flow control • Comprehensive LED support • 7-wire SNI support for legacy MAC interface • Automatic MDI/MDI-X crossover for plug-and-play • Disable automatic MDI/MDI-X option • Low power Core: 1.8V Digital I/O: 3.3V Analog I/O: 2.5 or 3.3V • 0.18µm CMOS technology • Commercial temperature range: 0°C to +70°C • Available in 128-pin PQFP package Applications • • • • • • • • • Broadband gateway/firewall/VPN Integrated DSL or cable modem multi-port router Wireless LAN access point plus gateway Home networking expansion Standalone 10/100 switch Hotel/campus/MxU gateway Enterprise VoIP gateway/phone FTTx customer premise equipment Media converter Ordering Information Part Number Standard Pb-Free KS8995XA KSZ8995XA September 2008 Temperature Range Package 0°C to +70°C 128-Pin PQFP 2 M9999-091508
