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| AC208 PRODUCT AC208 FEATURES SUMMARY OF Brief BENEFITS 8-PORT ULTRA LOW POWER 10/100 ETHERNET BRIDGED REPEATER integration * The highest level of siliconrepeater achieved for an eight-port 10/100 bridged * The AC208 integrates: * Eight transceivers of 10BASE-T/100BASE-TX * One uplink port * 10M repeater * 100M repeater * Two-port bridge including: - 32 KB memory for address table and packet buffer - Local MAC address filter - Address table up to 1K entries the * AC208 issamefirst chip of the AC208 product family with the architecture and fabrication technology. * * * * * * * * * Cascadable to 16, 24, and 32 port configuration * Fully compliant auto-negotiation * Very small package - 128-pin PQFP * Very low power - typical < 1.8W * 280 sq. mm footprint * Selectable TX drivers for 1:1 or 1.25:1 transformers to enable additional power reduction * Cable detect mode - typical < .32W * Power down mode - typical < .08W Other members of the product family include AC207, AC206, AC205 and AC205i. Provides easy product migration. Provides seamless integration for WAN connections and system expansion. Includes lowest overall cost and form factor for 10/100 repeater hub and SOHO gateway and router design. Field-proven, industry-standard 10BASE-T/100BASETX Fast Ethernet transceivers lower overall system interoperability and reliability risks. Integrated memory reduces component cost and manufacturing and testing costs. Low power consumption and low heat dissipation allows high design density and low system cost. EEPROM-configured system parameter enables costsensitive architecture. Repeater backplane compatibility with AC108R enables flexibility and expandability in system architecture. AC208 with AC206 System Block Diagram CPU MII R-MII 7-Wire T1/ISDN xDSL Cable Modem 100 Mbps 10 Mbps AC208 E 8E 8-Port Dual Speed Repeater AC208 E 8E AC208 E 8E 16-Port Dual Speed Repeater AC206 E 5E AC208 E 8E AC208 AC208 SOHO Router E24E 24-Port Dual Speed Repeater E32E 23-Port Dual Speed Repeater ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL AC208 OVERVIEW AC208 Block Diagram 32 KB RAM * Integrated PHY, Repeater and MII Bridge 10M RBP MII Bridge * Integrated Packet Buffer Memory * Integrated 1K MAC 100M RBP R_100 ... 10M 10M RBP 100M RBP RBP 100M R_10 ... * Programmable LEDs via EEPROM * Backplane for Cascading MUX P H Y P H Y P H Y P H Y P H Y P H Y P H Y P H Y TX0 TX1 TX2 TX3 TX4 TX5 TX6 TX7 Up Link The Altima AC208 is a highly integrated 0.25u CMOS silicon solution. It combines all the functions of a 10/100 dual-speed bridged repeater including PHY transceiver, two internal repeaters, two repeater backplane busses for expansion, a twoport bridge with 32 KB embedded memory. The AC208 contains eight 10BASE-T/100BASE-TX Fast Ethernet transceivers, one of which can be configured into a fullduplex uplink port. The transceivers perform all of the physical layer interface functions for 10BASE-T Ethernet on Category 3, 4, or 5 unshielded twisted pair (UTP) cable and 100BASE-TX Fast Ethernet on Category 5 UTP cable. The AC208 represents a marked improvement over the previous generation of the dual-speed bridged repeater family AC108R. Because the memory is embedded in the silicon, the AC208 offers the obvious advantage of cost savings in the discrete memory device. Additionally, a 128-pin PQFP package means savings in manufacturing and testing. Because the AC208 has the smallest footprint and the lowest power consumption, on a per-port basis, of any micro-LAN solution, when all system costs are considered -- power, heat, components and real estate -- the AC208 provides the lowest overall system cost and most reliable design. The AC208 product family includes the AC208, AC207, AC206, AC205 and AC205i with the following features and configurations: * AC208: 128-pin cascadable backplane PQFP, eight-port TX with * AC207: 128-pin PQFP, eight-port TX with MII or 7-wire * AC206: 128-pin PQFP, five-port TX with MII or reversed MII or 7-wire, cascadable repeater backplane * AC205: 100-pin PQFP, five-port TX with MII or 7-wire * AC205i: 100-pin PQFP, five-port TX with MII or 7-wire and single independent TX port for IP phone (c) 2002 by ALTIMA COMMUNICATIONS, INC. A Broadcom Company. All rights reserved. AC208-PB03-R-11.01.02 ALTIMA COMMUNICATIONS, INC. 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 ALTIMA COMMUNICATIONS, INC. CONFIDENTIAL |
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