KSZ8001SL Datasheet, PDF (1/46 Pages) Micrel Semiconductor – 1.8V, 3.3V 10/100BASE-T/TX/FX Physical Layer Transceiver

General Description
The KSZ8001 is a 10BASE-T/100BASE-TX/100BASE-FX
Physical Layer Transceiver, operating the core at 1.8 volts
to meet low voltage and low power requirements. The
solution provides MII/RMII/SMII interfaces to transmit and
receive data. A unique mixed-signal design extends
signaling distance while reducing power consumption.
HP Auto MDI/MDI-X provides the most robust solution for
eliminating the need to differentiate between crossover and
straight-through cables.
Featuring LinkMD cable diagnostics, which allows
detection of common cabling plant problems such as open
and short circuits, the KSZ8001 represents a new level of
features and performance and is an ideal choice of
physical layer transceiver for 100BASE-TX/10BASE-
T/100BASE-FX applications.
Functional Diagram
KSZ8001L/S
1.8V, 3.3V 10/100BASE-T/TX/FX
Physical Layer Transceiver
Data Sheet Rev. 1.04
Features
• Single chip 100BASE-TX/100BASE-FX/10BASE-T
physical layer solution
• 1.8V CMOS design, power consumption 250 mW
• Robust (130m+) operation over standard cables
• Supports Media Independent Interface (MII), Reduced
MII (RMII), and Serial MII (SMII)
• LinkMD feature to determine cable length and
diagnose faulty cables up 200 m with +/- 2 m accuracy
• Supports HP MDI/MDI-X auto crossover
• Supports power down mode and power saving mode
• MDC/MDIO to 12.5 MHz for rapid configuration
• Fully compliant to IEEE 802.3u standard
• Supports auto-negotiation and manual selection for
10/100Mbps speed and full / half-duplex mode
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 [phone] • fax + 1 [phone] • http://www.micrel.com
June 2009
Revision 1.04
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