PHY 1-CH 1000Mbps 676-Pin PBGA

The BCM5488R consists of eight complete 10/100/1000BASE-T Gigabit Ethernet transceivers integrated on a single monolithic CMOS chip. The BCM5488R is optimized for low power and small footprint size to enable high-port density applications. By lowering system cost and reducing power dissipation by nearly 30 percent, the BCM5488R enables a new class of cost-effective Gigabit Ethernet equipment, driving the delivery of Gigabit Ethernet bandwidth to the desktop.The BCM5488R DSP-based architecture and advanced power management techniques combine to achieve robust and low-power operation over existing Category 5 twisted-pair wiring. The BCM5488R architecture not only meets the requirements of IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab but also maintains the industry’s highest level of margin over IEEE requirements for echo, near-end crosstalk (NEXT), and far-end crosstalk (FEXT). Low power is the key to implementing high-density Gigabit Ethernet switches, and the BCM5488R has the lowest power in the industry at less than 600 mW per port. In addition, the BCM5488R has extremely low EMI emissions, which reduces the design constraints required to meet EMI radiation specifications.The BCM5488R supports the RGMII MAC interface. The RGMII interface is a reduced pin-count (12 versus 25) version of the GMII. The RGMII clock timing can be adjusted to eliminate the board trace delays required by the RGMII specification. The reduced pin-count interface simplifies design and lowers system cost by reducing the number of layers required to route high-density solutions. In addition, this interface allows fewer pins at the MAC/switch, which reduces the MAC/switch cost by enabling smaller die sizes than would be possible with full GMII.This device is another member of Broadcom’s 0.13-µm Gigabit Ethernet copper PHY family, joining more than a dozen other quad and single products. The 0.13-µm process is the optimal process that offers the best performance, lowest cost, and lowest power for Gigabit Ethernet copper solutions.

• Eight fully-integrated 10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet transceivers
• Fully compliant with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab standards
• 0.13-micron CMOS—low power and cost
• RGMII HSTL MAC interface
• Supports line-side triple-speed SFP with auto-detect capability
• Supports line-side copper or fiber mode
• Supports fiber 100M and 1G operation on the same SerDes pins
• Low power
• <600 mW per port
• Advanced power management
• Trace-matched output impedance
• Line-side 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 skew, and pair polarity
  • 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) and 1149.6 (AC-JTAG) boundary scan
• Package: 676-pin PBGA