3.3V 10/100BASE-TX/FX Physical Layer Transceiver KS8721BL/SL 10BA

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3.3V 10/100BASE-TX/FX Physical Layer Transceiver KS8721BL/SL 10BA

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KS8721BL/SL Product Brief
3.3V 10/100BASE-TX/FX Physical Layer Transceiver
KS8721BL/SL 10BASE-T, 100BASE-TX, 100BASE-FX physical layer transceiver providing MII/ RMII interfaces MACs switches. Using unique mixed-signal design that extends signaling distance while reducing power consumption, KS8721BL/SL represents Micrel's fourth generation single-port Fast Ethernet PHY. Micrel's architecture dissipates ultra-low 275mW power, including transmit output drivers. This translates increased reliability while enabling deployment today's power-sensitive applications. Multiple power-down modes, accessed configuration pins registers, allow further levels power saving through manual selection automatic detection cable energy.
KS8721BL/SL automatically configures itself 100Mbps 10Mbps full- half-duplex operation, using on-chip auto-negotiation algorithm. Combined with Auto MDI/MDIX automatic correction detection crossover straight-through cables, KS8721BL/SL provides easy-to-use, high performance solution 10BASE-T, 100BASE-TX, 100BASE-FX applications. additional information, contact your local Micrel Field Application Engineer salesperson.
Block Diagram
NRZ/NRZI MLT3 Encoder 4B/5B Encoder Scrambler Parallel/Serial TXD3 TXD2 TXD1 TXD0 TXER TXEN MDIO RXD3 RXD2 RXD1 RXD0 RXER RXDV
Transmitter
10/100 Pulse Shaper
Parallel/Serial Manchester Encoder MII/RMII Registers Controller Interface
Adaptive Baseline Wander Correction MLT3 Decoder NRZI/NRZ
Clock Recovery
4B/5B Decoder Descrambler Serial/Parallel
Auto Negotiation Manchester Decoder Serial/Parallel
10BASE-T Receiver
Power-Down/ Power-Saving PWRDWN Driver
LINK
Micrel Semiconductor
TEL: 1.408.944.0800
FAX: 1.408.474.1000 HTTP://
Features
Single chip 10BASE-T, 100BASE-TX, 100BASE-FX physical layer solution Fully compliant IEEE802.3u standards Low-power CMOS design, power consumption Supports media independent interface (MII) reduced (RMII) Delivers robust operation (130 meters+) Furnishes Auto MDI/MDI-X Offers both power-down power-saving modes Single 3.3V power supply Configurable through serial management ports external control pins Available lead-free industrial temperature versions Offered flexible package options
Benefits
Supports back-to-back operation copper-to-fiber media converter applications. Designed operate with link partners speeds. Increased reliability, greater range power-sensitive 275mW (including output driver current) applications. Flexible switch/MAC interfacing options. Optimized count interfaces lower cost through reduced trace/simplified routing. Operation over widest variety cabling plants. Automatic detection correction straight-through crossover cables. Automatically shuts down upon cable removal extending battery life mobile applications. Easy migration from earlier KS8721B/BT family members. Programmable environments with without CPU. Environmentally friendly rugged. KS8721BL 48-pin LQFP space-constrained KS8721SL mainstream 48-pin SSOP.
Applications
Motherboard Media Converter Set-Top Cable/DSL Modem Network Printer Game Console
RJ-45 with Integrated Magnetics KS8721BL/SL Fast Ethernet
MII/ RMII Print Engine ASIC KS8721BL/SL Fast Ethernet
RJ-45 with Integrated Magnetics
RMII
KS8721BL/SL Fast Ethernet
Fiber Module
Network Printer Application
Media Converter Application
Contact Micrel Semiconductor
Location
Corporate Eastern Central Western China Korea Taiwan Singapore Japan Europe Western Europe
Address
1849 Fortune Drive Branch Street Denton Suite 2180 Fortune Drive Room 712, Block Intl. Chamber Commerce Bldg., Fuhua Futian Building, 826-14, Yeoksam-dong, Kangnam-ku Lane 321, Yang-Guang Street, Nei-Hu Temasek Blvd., #42-01 Suntec Tower Three 1-16-15 Dogenzaka, Shibuyaku Floor, Lockside Place, Mill Lane avenue Quebec, Villebon BP116 Jose, 95131 Medford, 08055 Coppell, 75019 Jose, 95131 ShenZhen, China 518026 Seoul 135-080 Korea Taipei, 11475 Taiwan, R.O.C. Singapore 038988 Tokyo 150-0043 Japan Newbury, Berks RG14 Courtaboeuf Cedex 91944 France
Telephone
(408) 944-0800 (609) 654-0078 (972) 393-2533 (408) 944-0800 (755) 8302-7618 3466-3000 +886 8751-0600 +65-6832-7692 5428-0871 1635 524455 1-6092-4190
(408) 474-1000 (609) 546-0989 (972) 393-2540 (408) 914-7878 (755) 8302-7637 3466-2999 +886 8751-0746 +65-6832-7693 5428-0872 1635 524466 1-6092-4189
Micrel Semiconductor
TEL: 1.408.944.0800 FAX: 1.408.474.1000
HTTP:// www.micrel.com Stock Code: M1016-070604

3.3V 10/100BASE-TX/FX Physical Layer Transceiver KS8721BL/SL 10BA

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