BCM5421S
10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER WITH SERDES
Fully integrated 10BASE-T/100BASE-TX/1000BASE-T
Gigabit Ethernet transceiver with SerDes
MII, GMII, TBI, RGMII, RTBI, SGMII, and MAC SerDes
interface options
Line-side copper and fiber interface options
On-chip low voltage regulators
Fully compliant with IEEE 802.3, 802.3u, and 802.3ab
standards
0.13-
m CMOS -- low power and cost
Low power
1W per port
Wake on LAN support
Advanced power management
Low EMI emissions
Ethernet@WireSpeedTM logic automatically selects the
maximum speed based on channel conditions
Cable plant diagnostic
Cable plant analyzer function detects cable plant impairments
Link quality indication LED
Automatic detection and correction of wiring pair swaps,
pairskew, and pair polarity
Automatic MDI/MDIX crossover at all speeds
Robust CESD tolerance
Support for jumbo packets up to 9 KB
IEEE 1149.1 (JTAG) boundary scan
117-pin BGA and 128-pin MQFP packages
Provides triple-speed operation for compatibility with legacy
networks.
Simplifies system and board design.
RGMII/RTBI reduces I/O pin requirement over GMII and TBI
by more than 50%.
SGMII further reduces the interface to six pins, while the serial
MAC SerDes interface requires only four pins.
Lowers system cost and reduces solution footprint.
Provides interoperability with IEEE standard device
operation at 10, 100 and 1000 Mbps at half- and full-duplex.
Requires no airflow or heatsink.
Provides compliance with PCI 2.2 and PC99/PC2000.
Reduces system design constraints to meet EMI emissions
standards.
Automatically configures the link to support the highest
possible speed based on link partner capability and
characteristics of the channel.
Cable diagnostic function characterizes cable plant condition
and immediately indicates cabling issues.
Prevents erroneous equipment return due to bad cable plants.
Prevents manufacturing fall-out due to bad cable plants.
High CESD tolerance prevents equipment damage and return.
Operates with larger packets for wider range of packet
protocol support and improved efficiency.
Ease of manufacturing with JTAG support, simplified power
supply, and multiple MAC interfaces.
F E A T U R E S
S U M M A R Y O F B E N E F I T S
BCM5421S
Transformer
RJ-45
GBIC Connector
SerDes
Switch/MAC
GBIC
Module
BCM5421S
Optical
Module
Transformer
RJ-45
BCM5605
BCM5228
BCM5228
BCM5228
10/100/1000BASE-T GBIC Module
1000BASE-T Gigabit Copper or Fiber Uplink
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