BCM5327M
®
EIGHT-PORT 10/100 SWITCH WITH ON-CHIP PACKET BUFFER
FEATURES
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The highest level of silicon integration achieved for a eight-
port 10/100 Ethernet switch device
SUMMARY OF BENEFITS
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Enables a new generation of lower cost 10/100 switches in
much smaller form factors
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Fourth generation switch on a chip
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The BCM5327M integrates:
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Eight transceivers (802.3u compliant)
Nine media access controllers (802.x compliant)
256-KB packet buffer
Non-blocking switch fabric
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Utilizes field-proven industry-standard 10BASE-T/100BASE-
TX Fast Ethernet transceivers—lowering overall system
interoperability and reliability risks
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Flexible interfaces support a wider variety of application
needs—fiber for long distances or an additional 100TX port
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Sufficient address range handles all remote office, branch
office and home office needs
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Packet classification 802.1p QoS priority queues
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Port-based VLAN
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MII or 7-wire interface supports an additional 100FX or 100TX
connection enabling a sixth user connection or uplink
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Port VLAN, trunking, and 802.1p priority enables the switch to
be designed into a wide variety of applications
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CPUs are not required to initialize and run in cost-sensitive
unmanaged applications—providing true Plug and Play
connectivity
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Supports up to 4K MAC addresses
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Flow control: full-duplex (802.3x) and half-duplex options
supported
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Internal oscillator circuit simplifies design and reduces
overall system cost
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Supports automatic address learning and aging
Internal oscillator circuit
Typical power consumption: < 1.8W
208-pin PQFP package
Management features:
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Low-cost MIB Autocast
TM
function
Hardware support for Simple Network Management Protocol
(SNMP), Remote Network Monitoring (RMON) and Spanning
Tree
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Ability to gather and support basic management statistics
with only a very low-cost microcontroller
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Low-cost management using the on-chip MIB registers allows
the collection and transmission of statistics for each port and
provides an upward migration path for corporate users
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On-chip HP auto-MDI/MDIX feature automatically detects and
corrects for crossover cables and allows direct switch-to-
switch connection
Low Cost Managed Eight-Port 10/100 Smart Switch
BOARDCOM [ Broadcom Corporation. ]
