BCM5228
®
10/100BASE-TX/FX HEX-Φ™ TRANSCEIVER
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
Single-chip eight-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
Up to 150 meters of error-free operation
Full-duplex support
Twisted-pair or fiber support on any or all ports
Interrupt output capability
208-pin PQFP or 256-pin FBGA package
Proven Broadcom proprietary DSP Digi-Φ™ architecture
SUMMARY OF BENEFITS
•
•
•
•
•
Target usage: Fast Ethernet switches
Smallest footprint per port available
HP Auto-MDIX detects and corrects cabling errors
Measures 17 mm × 17 mm for eight ports
Single-chip device contains eight independent Fast Ethernet
transceivers
•
Performs all physical layer interface functions for 100BASE-
TX full- or half-duplex Ethernet on Category 5 unshielded
twisted-pair (UTP) cable and 10BASE-T full-duplex or half-
duplex Ethernet on Category 3, 4, or 5 UTP 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
•
Three LED indicator pins per port
•
Onboard cable length meter reports the link distance for each
port
24-Port 10/100 Switch
BCM5421
Gigabit
PHY
STRATASWITCH™
GMII
GMII
EPIC
RMII
EPIC
RMII
EPIC
RMII
BCM5421
Gigabit
PHY
BCM5228
OCTAL-F
BCM5228
OCTAL-F
BCM5228
OCTAL-F
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
RJ45 Stacked 2×6
RJ45 Stacked 2×6
BOARDCOM [ Broadcom Corporation. ]
