BCM5421 Broadcom Corporation, BCM5421 Datasheet
BCM5421
Manufacturer Part Number
BCM5421
Description
Manufacturer
Broadcom Corporation
Datasheet
1.BCM5421.pdf
(2 pages)
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Fully integrated 10BASE-T/100BASE-TX/1000BASE-T
Gigabit Ethernet transceiver
On-chip low-voltage regulators
Fully compliant with IEEE 802.3, 802.3u, and 802.3ab
standards
0.13-µm CMOS — low-power and cost
Low power
• 1W per port
• Wake on LAN support
• Advanced power management
Low EMI emissions
Ethernet@WireSpeed™ 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, pair
• Automatic MDI/MDIX crossover at all speeds
Robust CESD tolerance
Support for jumbo packets up to 9 KB
IEEE 1149.1 (JTAG) boundary scan
MII, GMII, TBI, RGMII, and RTBI interface options
117-pin BGA and 128-pin MQFP packages
10/100/1000BASE-T Network Interface Card
skew, and pair polarity
10/100/1000BASE-T GIGABIT COPPER TRANSCEIVER
F E A T U R E S
Gigabit PCI MAC
BCM5421
BCM5700
Transformer
RJ-45
®
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Octal 10/100Mbps Phy
BCM5421
BCM5228
Provides interoperability with IEEE standard devices
operating at 10, 100, and 1000 Mbps at half- and full-duplex.
Lowers system cost and reduces solution footprint.
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.
Simplifies system and board design.
• RGMII/RTBI reduces I/O pin requirement over GMII and TBI
BCM5605
24FE+2G
by more than 50%.
Switch
S U M M A R Y O F B E N E F I T S
1000BASE-T Gigabit Uplink
Octal 10/100Mbps Phy
BCM5228
BCM5421
BCM5421
Octal 10/100Mbps Phy
BCM5228
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BCM5421 Summary of contents
Page 1
... MAC interfaces. • Simplifies system and board design. • RGMII/RTBI reduces I/O pin requirement over GMII and TBI by more than 50%. 1000BASE-T Gigabit Uplink BCM5421 BCM5605 24FE+2G Switch BCM5421 BCM5228 BCM5228 BCM5228 Octal 10/100Mbps Phy Octal 10/100Mbps Phy Octal 10/100Mbps Phy ...
Page 2
... IEEE requirements for Echo, NEXT, and FEXT. Low power is a key factor in implementing Gigabit small form factor NICs and uplinks and per port, the BCM5421 dissipates nearly half the power of previous Gigabit PHY transceivers. For NIC applications, support for Wake on LAN enables compliance with PCI 2 ...