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| 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 G M II/R G M II/M II Interface P C S 100 PM A R X 10 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 10/100/1000Base-T IEEE 802.3 compliance Benefits Standard compliance ensures to work with other standard compliant, already deployed devices. 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. 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 permits a low cost MOSFET to supply the 1.2V core, which reduces board cost and simplifies board layout. Built-in LinkMD diagnostics helps identification of common cabling problems, including those not addressed by IEEE. It simplifies network deployment and reduces network downtime. Auto-MDI/MDIX eliminates the need for cross-over cable, thus reduces installation costs. Easy to use. (R) GMII, RGMII, and MII MAC interfaces Integration of termination resistors on the chip Integration of a LDO controller on the chip LinkMD TDR-based cable diagnostics Automatic MDI/MDIX crossover for IEEE 802.3 and EIA/TIA 568 standards at all speeds of operation (R) Applications * Wired/wireless Gigabit SOHO/SMB Router * SOHO Media Center * Voice-over-Internet Protocol (VoIP) Gateway * Network Attached Storage * Laser Printers and Projectors * * * * * GEPON ONU Router Media Converter VPN/Firewall based SMB/SME Router Gigabit Ethernet LAN on Motherboard Integrated Broadband CPE (ADSL/VDSL/FTTH) Router Corporate Sales Offices Location Corporate HQ Western USA Central USA Eastern USA Latin America China Japan Korea Singapore/India Taiwan France/Southern Europe UK/EMEA Sweden/Nordic Address 2180 Fortune Dr. 2180 Fortune Dr. 2425 N. Central Expressway, Suite 351 93 Branch St. 2425 N. Central Expressway, Suite 351 Rm 601, Bldg., Int'l Chamber of Commerce Mansion, Fuhua Rd., Futian District Queen's Tower A 14F, 2-3-1, Minato Mirai, NishiKu, Yokohama-Shi 8F AnnJay Tower Bldg., 718-2, Yeoksam-Dong 300 Beach Rd., #10-07 Concourse 4F, No. 43 Lane 188, Rueiguang Rd., Neihu District Les Laurentides Immeuble Ontario, 3 avenue du Quebec 1st Floor, 3 Lockside Place, Mill Lane, Newbury, Berks Lundagatan 11 6tr San Jose, CA 95131 USA San Jose, CA 95131 USA Richardson, TX 57080 USA Medford, NJ 08055 USA Richardson, TX 57080 USA Shenzhen, P.R. China Kanagawa 220-6014, Japan Kangnam-Ku, Seoul 135-080 Korea Singapore 199555 Taipei, Taiwan, R.O.C. 91140 Villebon sur Yvette, France United Kingdom RG14 5QS SE-171 63 Solna Sweden Telephone (408) 944-0800 (408) 944-0800 (972) 393-2533 (609) 654-0078 (972) 393-2533 +86-755-8302-7618 +81-45-224-6616 82 (2) 538-2380 +65-6291-1318 +866 (2) 8751-0600 +33 (0) 1.6092.4190 +44 (1635) 524455 +46 (8) 470-5950 Fax (408) 474-1000 (408) 474-1000 (408) 474-1210 (609) 654-0989 (408) 474-1210 +86-755-8302-7637 +81-45-224-6716 82 (2) 538-2381 +65-6291-1332 +866 (2) 8751-0746 +33 (0) 1.6092.4189 +44 (1635) 524466 +46 (8) 470-5950 Micrel, Inc. TEL: +1 408.944.0800 FAX: + 1 408.474.1000 http://www.micrel.com M9999-121108 |
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