KSZ8993M/ML
Integrated 3-Port 10/100 Managed
Switch with PHYs
Rev 1.06
General Description
The KSZ8993M, a highly integrated Layer 2
managed switch, is designed for low port count,
cost-sensitive 10/100 Mbps switch systems. It offers
an extensive feature set that includes tag/port-based
VLAN,
quality
of
service
(QoS)
priority,
management, management information base (MIB)
counters, MII/SNI, and CPU control/data interfaces
to effectively address both current and emerging
Fast Ethernet applications.
The KSZ8993M contains two 10/100 transceivers
with patented mixed-signal low-power technology,
three media access control (MAC) units, a high-
speed non-blocking switch fabric, a dedicated
address lookup engine, and an on-chip frame buffer
memory.
Both PHY units support 10BASE-T and 100BASE-
TX. In addition, one of the PHY unit supports
100BASE-FX.
The KSZ8993ML is the single supply version with all
the identical rich features of the KSZ8993M.
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Functional Diagram
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
408
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 2008
1
M9999-020606
MICREL [ MICREL SEMICONDUCTOR ]
