KSZ9021GQ KSZ9021RL Product Brief Single-port 10/100/1000Base-T Gigabit Transceiver Description The KSZ9021GQ and KSZ9021RL are single-port 10/100/1000Base-T Gigabit transceivers, supporting data transfer over standard CAT-5 unshielded twisted pair cable. This device offers robust performance and low power consumption. On-chip integration of termination resistors and LDO controller, along with built-in diagnostic features, significantly reduces the cost and the complexity of Gigabit Ethernet applications. This device is ideal for enabling Gigabit Ethernet performance in SOHO and SMB networking applications, such as media converter, GEPON ONU router, wired/wireless Gigabit SOHO/SMB router, and VoIP gateway. The device is available in two RoHS-compliant package options - 128-pin QFP (KSZ9021GQ, supporting GMII/MII) and 64-pin E-LQFP (KSZ9021RL, supporting RGMI). Industrial grade is also available. The datasheets and support documentation can be found on Micrel’s web site at: www.micrel.com. ___________________________________________________________________________________________________________ Block Diagram PM A TX 10/100 /1000 C lo ck R eset C o nfig uratio n s PM A R X 1000 P C S 1000 M E D IA IN TE R FA C E PM A R X 100 P C S 100 PM A R X 10 G M II/R G M II/M II Interface P C S 10 A U TO N E G O T IA TIO N LE D D R IV E R S Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 http://www.micrel.com Features Benefits 10/100/1000Base-T IEEE 802.3 compliance Standard compliance ensures to work with other standard compliant, already deployed devices. GMII, RGMII, and MII MAC interfaces Flexible MAC interfaces (GMII/MII for KSZ9021GQ and RGMII for KSZ9021RL) support direct connection to MACs in Ethernet processors and switches at various data rates. Integration of termination resistors on the chip On-chip termination (eliminating 8 external resistors) not only simplifies PCB design and reduces system BOM, but also improves overall signal integrity and EMI emission. Integration of a LDO controller on the chip Integration of a LDO controller permits a low cost MOSFET to supply the 1.2V core, which reduces board cost and simplifies board layout. ® LinkMD TDR-based cable diagnostics Built-in LinkMD diagnostics helps identification of common cabling problems, including those not addressed by IEEE. It simplifies network deployment and reduces network downtime. Automatic MDI/MDIX crossover for IEEE 802.3 and EIA/TIA 568 standards at all speeds of operation Auto-MDI/MDIX eliminates the need for cross-over cable, thus reduces installation costs. Easy to use. ® Applications • Wired/wireless Gigabit SOHO/SMB Router • GEPON ONU Router • SOHO Media Center • Media Converter • Voice-over-Internet Protocol (VoIP) Gateway • VPN/Firewall based SMB/SME Router • Network Attached Storage • Gigabit Ethernet LAN on Motherboard • Laser Printers and Projectors • Integrated Broadband CPE (ADSL/VDSL/FTTH) Router 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 (408) 474-1000 Central USA Eastern USA 2425 N. Central Expressway, Suite 351 Richardson, TX 57080 USA (972) 393-2533 (408) 474-1210 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 M9999-121108