BCM5461 Broadcom, BCM5461 Datasheet
BCM5461
Manufacturer Part Number
BCM5461
Description
10/100/1000 BASE T GIGABIT COPPER TRANSCEIVER
Manufacturer
Broadcom
Datasheet
1.BCM5461.pdf
(2 pages)
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Fully integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit
Ethernet transceiver
GMII, RGMII, RTBI, and MII MAC Interface options
On-chip low-voltage regulators
Fully compliant with IEEE 802.3, 802.3u, and 802.3ab standards
0.13µ CMOS — low power and cost
Low power
• Less than 700 mW per port
• Wake on LAN support
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Trace matched output impedance
Line side loopback
Low EMI emissions
Cable plant diagnostic
• Cable plant analyzer function detects cable plant impairments
• Link quality indication LED
• Automatic detection and correction of wiring pair swaps, pair skew,
• Automatic MDI/MDIX crossover at all speeds
Robust CESD tolerance
Support for jumbo packets up to 9 KB
IEEE 1149.1 (JTAG) boundary scan
128-pin MQFP, 117-pin BGA, and 100-pin FBGA packages
Advanced power management
and pair polarity
Gigabit Backplane Communication
BCM5464
Main Control Board
10/100/1000BASE-T Gigabit Copper Transceiver
BCM5461
F E A T U R E S
Peripheral Board #1
BCM5461
®
Peripheral Board #2
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BCM5461
Simplifies system and board design
• Reduced I/O pin requirements with RGMII (over 50%)
• Clock timing can be adjusted to eliminate board trace delays required
Provides interoperability with IEEE standard devices operating at 10,
100, and 1000 Mbps at half- and full-duplex.
Lowers system BOM cost and simplifies system design.
Requires no airflow or heatsink.
Provides compliance with PCI 2.2 and PC99/PC2000.
Eases system level debug.
Reduces system design constraints to meet EMI emissions standards.
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.
Octal 10/100 Mbps PHY
by the RGMII specification
1000BASE-T Gigabit Uplink
BCM5238
S U M M A R Y O F B E N E F I T S
BCM5645
24FE+2G
Switch
Octal 10/100 Mbps PHY
BCM5238
BCM5461
BCM5461
Octal 10/100 Mbps PHY
BCM5238
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BCM5461 Summary of contents
Page 1
... 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. BCM5461 BCM5645 24FE+2G Switch BCM5461 BCM5238 BCM5238 BCM5238 Octal 10/100 Mbps PHY Octal 10/100 Mbps PHY Octal 10/100 Mbps PHY 1000BASE-T Gigabit Uplink ...
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, at less than 700 mW per port, the BCM5461 has the industry's lowest power. For NIC applications, support for Wake on LAN enables compliance with PCI 2 ...