BCM5488 Broadcom, BCM5488 Datasheet
BCM5488
Manufacturer Part Number
BCM5488
Description
Octal Port 10/100/1000Base-T Gigabit Ethernet Transceiver
Manufacturer
Broadcom
Datasheet
1.BCM5488.pdf
(2 pages)
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OCTAL-PORT 10/100/1000BASE-T GIGABIT ETHERNET TRANSCEIVER
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Eight fully integrated 10BASE-T/100BASE-TX/1000BASE-T
Gigabit Ethernet transceivers
RGMII, SGMII, and SerDes MAC interface options
1-Gbps lineside SerDes with RGMII MAC interface option
Fully compliant with IEEE 802.3, IEEE 802.3u, and
IEEE 802.3ab standards
0.13-micron CMOS—low power and cost
Supports copper or fiber in RGMII mode
Low power
• <625 mW per port
• Advanced power management
Trace-matched output impedance
Lineside loopback
Low EMI emissions
CableChecker™ diagnostics
• CableChecker detection of cable plant impairments
• Link quality indication LED
• Automatic detection and correction of wiring pair swaps, pair
• Automatic MDI/MDIX crossover at all speeds
Robust cable-sourced electrostatic discharge (CESD) tolerance
Support for jumbo packets up to 10 KB
IEEE 1149.1 (JTAG) boundary scan
Package: 484-pin PBGA
skew, and pair polarity
F E A T U R E S
®
BCM5488 System Diagram
10/100/1000BASE-T
Gigabit Ethernet
BCM5488
Transceiver
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BCM5488
BCM5488
Low-power, octal-port integration enables single-row,
high-port density switches
• Lowers system costs by eliminating PCB layers required for
• Reduced I/O pin requirements with RGMII (over 50%), SGMII
• Clock timing can be adjusted to eliminate board trace delays
• Lowers MAC/switch costs by reducing the number of pins
Provides compatibility with IEEE standard devices operating
at 10, 100, and 1000 Mbps at half-duplex and full-duplex
Lowers system BOM cost and simplifies system design
Eases system level debug
Enables use of low-cost magnetics, even in high-density (48+)
designs
CableChecker characterizes cable plant condition and
immediately indicates cabling issues
• Prevents erroneous equipment return due to bad cable plants
• Prevents manufacturing fallout due to bad cable plants
Over 3 kV of 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
routing high-density solutions
(over 75%), and SerDes (over 80%)
required by the RGMII specification
required to interface with the PHY
S U M M A R Y O F B E N E F I T S
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BCM5488 Summary of contents
Page 1
... Over 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 BCM5488 System Diagram BCM5488 BCM5488 10/100/1000BASE-T Gigabit Ethernet Transceiver ...
Page 2
... Low power is the key to implementing high-density Gigabit Ethernet switches, and the BCM5488 has the lowest power in the industry at less than 625 mW per port. In addition, the BCM5488 has extremely low EMI emissions, which reduces the design constraints required to meet EMI radiation specifications ...