BCM5226 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – 10/100 BASE TX/FX HEX TRANSCEIVER

BCM5226
PRODUCT
®
Brief
10/100BASE-TX/FX HEX-Φ™ TRANSCEIVER
BCM5226 FEATURES
• ^{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-Φ™}
architecture
SUMMARY OF BENEFITS
• ^{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
6 Active PHY components
+ 6 MACs including switch fabric
Switch Fabric and System Logic
QUAD MAC
QUAD MAC
24x16=384 MII Pins
BCM5208
Port 1
BCM5208
Port 24
4 Active SMII PHY components
+ SMII MACs embedded in switch chip
Switch Fabric with Embedded MACs
24x2=48 SMII Pins
BCM5226 BCM5226 BCM5226 BCM5226
Port 1
Port 24