KSZ8873MLL/KSZ8873MML KSZ8873RLL/KSZ8873FLL Product Brief Integrated 10/100BASE-T/TX/FX 3-Port Switch Description The KSZ8873MLL, KSZ8873RLL, KSZ8873FLL, and KSZ8873MML are highly integrated 3-port switch on a chip ICs in industry’s smallest footprint. They are designed to enable a new generation of low port count, cost-sensitive and power efficient 10/100Mbps switch systems. Low power consumption, advanced power management and sophisticated QoS features (e.g., IPv6 priority classification support) make these devices ideal for IPTV, IP-STB, VoIP, automotive and industrial applications. The configurations provided by the KSZ8873 family enable the flexibility to meet requirements of different applications: The KSZ8873 family is designed to support the GREEN requirement in today’s switch systems. Advanced power management schemes include hardware power down, software power down, and the energy detect mode that shuts downs the transceiver when a port is idle. • KSZ8873MLL, KSZ8873RLL, and KSZ8873FLL also offer the by-pass mode, which enables system-level power savings. In this mode, the processor connected to the switch through the MII interface can be shut down without impacting the normal switch operation. • KSZ8873MLL: Two 10/100BASE-T/TX transceivers and one MII interface. • KSZ8873MML: One 10/100BASE-T/TX transceiver and two MII interfaces. • KSZ8873RLL: Two 10/100BASE-T/TX transceivers and one RMII interface. KSZ8873FLL: Two 10/100BASE-FX transceivers and one MII interface. The devices are available in RoHS-compliant 64-pin LQFP package. Industrial grade is also available. The datasheets and supporting documents can be found at Micrel’s web site at: www.micrel.com. ___________________________________________________________________________________________________________ Block Diagram Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 http://www.micrel.com Features Benefits 2KByte packet size support Facilitates large package size requirement in new Ethernet applications. Port 1 & Port 2 by-pass mode Ethernet traffic between Port 1 and Port 2 are sustained while the MII interface (Port 3) is shut down. This allows the device connected to the MII interface to enter a power saving mode. 4-queue (per port) traffic prioritization, based on port, 802.1p, 802.1Q VLAN tags, or Differential Services (both Ipv4 and Ipv6 priority classification) Enables the implementation of advanced QoS policies. Source address filtering Enables the implementation of Ethernet ring network for industrial control and automotive applications. Internal generated RMII 50MHz clock (KSZ8873RLL) Eliminates expensive external 50MHz oscillator for the RMII mode. ® LinkMD TDR-based cable diagnostics Allows identification of common cabling problems, including those not addressed by IEEE. Simplifies network deployment and reduces network downtime. Applications • IP Set-Top Box • Automotive Infotainment • IP Television/IP Television POF • Industrial control • IP phone/Video phone • FTTx CPE • Analog Telephone Adapter (ATA) Corporate Sales Offices Location Address Telephone Fax Corporate HQ 2180 Fortune Dr. Western USA 2180 Fortune Dr. San Jose, CA 95131 USA (408) 944-0800 (408) 474-1000 San Jose, CA 95131 USA (408) 944-0800 Central USA (408) 474-1000 2425 N. Central Expressway, Suite 351 Richardson, TX 57080 USA (972) 393-2533 (408) 474-1210 Eastern USA 93 Branch St. Medford, NJ 08055 USA (609) 654-0078 (609) 654-0989 Latin America 2425 N. Central Expressway, Suite 351 Richardson, TX 57080 USA (972) 393-2533 (408) 474-1210 China Rm 601, Bldg., Int’l Chamber of Commerce Mansion, Fuhua Rd., Futian District Shenzhen, P.R. China +86-755-8302-7618 +86-755-8302-7637 Japan Queen’s Tower A 14F, 2-3-1, Minato Mirai, NishiKu, Yokohama-Shi Kanagawa 220-6014, Japan +81-45-224-6616 +81-45-224-6716 8F AnnJay Tower Bldg., 718-2, Yeoksam-Dong Kangnam-Ku, Seoul 135-080 Korea 82 (2) 538-2380 82 (2) 538-2381 Singapore/India 300 Beach Rd., #10-07 Concourse Singapore 199555 +65-6291-1318 +65-6291-1332 Taiwan 4F, No. 43 Lane 188, Rueiguang Rd., Neihu District Taipei, Taiwan, R.O.C. +866 (2) 8751-0600 +866 (2) 8751-0746 France/Southern Europe Les Laurentides Immeuble Ontario, 3 avenue du Quebec 91140 Villebon sur Yvette, France +33 (0) 1.6092.4190 +33 (0) 1.6092.4189 UK/EMEA 1st Floor, 3 Lockside Place, Mill Lane, Newbury, Berks United Kingdom RG14 5QS +44 (1635) 524455` +44 (1635) 524466 Sweden/Nordic Lundagatan 11 6tr SE-171 63 Solna Sweden +46 (8) 470-5950 +46 (8) 470-5950 Korea Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 http://www.micrel.com M9999-042109