BOARDCOM BCM5228 10/100 base - tx/fx octal transceiver Datasheet

BCM5228
PRODUCT
Brief
®
1 0 / 1 0 0 B A S E - T X / F X O C TA L - Φ™ T R A N S C E I V E R
B C M 5 2 2 8
S U M M A R Y
F E AT U R E S
• 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 All-DSP Digi-ΦΦ™
O F
B E N E F I T S
• 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
architecture
for each port
24-Port 10/100 Switch
BCM5421
Gigabit
PHY
STRATASWITCH™
GMII
GMII
EPIC
EPIC
EPIC
RMII
RMII
RMII
BCM5228
BCM5228
BCM5228
OCTAL-F
OCTAL-F
OCTAL-F
Quad
Magnetics
Quad
Magnetics
RJ45 Stacked 2×6
Quad
Magnetics
Quad
Magnetics
Quad
Magnetics
RJ45 Stacked 2×6
Quad
Magnetics
BCM5421
Gigabit
PHY
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