Target usage: Fast Ethernet switches.
Low power < 300 milliwatts per port.
Auto-MDIX detects and corrects cabling errors.
Provides robust performance over a broad range of
operating conditions.
Single-chip device contains six independent Fast
Ethernet transceivers.
Performs all physical layer interface functions for
100BASE-TX full-duplex or half-duplex Ethernet on
Category 5 twisted-pair cable and 10BASE-T full- or
half-duplex Ethernet on Category 3, 4, or 5 cable.
Permits transmission over fiber-optic cabling when
paired with an external fiber-optic transceiver.
Compliant with IEEE 802.3 standard.
IEEE 1149.1 (JTAG) scan chain support.
Quad BCM5208 Versus HEX BCM5226 Comparison
S U M M A R Y O F B E N E F I T S
6 Active PHY components
+ 6 MACs including switch fabric
QUAD MAC
QUAD MAC
Switch Fabric and System Logic
BCM5208
BCM5208
Port 1
Port 24
4 Active SMII PHY components
+ SMII MACs embedded in switch chip
BCM5226
Port 1
Port 24
Switch Fabric with Embedded MACs
BCM5226
BCM5226
BCM5226
24x16=384 MII Pins
24x2=48 SMII Pins
Single-chip six-port Fast Ethernet transceiver
HP Auto-MDIX
Low-power 2.5V CMOS technology
Compatible with 2.5V I/O and 3.3V I/O
Reduced Media Independent Interface (RMII)
Serial Media Independent Interface (SMII)
Fully integrated digital adaptive equalization
On-chip multimode transmit waveshaping
Edge-rate control eliminates external filters
Integrated baseline wander correction
Full-duplex support
Twisted-pair or fiber support on any or all ports
Interrupt output capability
Loopback mode for diagnostics
160-pin PQFP (BCM5226R)
128-pin PQFP (BCM5226S)
Proven Broadcom proprietary DSP Digi-
TM
architecture
B C M 5 2 2 6 F E A T U R E S
1 0 / 1 0 0 B A S E - T X / F X H E X -
TM T R A N S C E I V E R
PRODUCT
PRODUCT
Brief
Brief
B C M 5 2 2 6
PDF 
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