BCM5715SKPB

Specialized Overview

The BCM5715SKPB is a dual-port Gigabit Ethernet controller featuring a PCI Express x4 host interface and two integrated 1000BASE-X MACs. Fabricated using 0.13 µm CMOS technology, it operates with 1.2V core, 2.5V I/O, and 3.3V I/O power rails. The device includes dual 1.25 Gbps SerDes interfaces, high-speed RISC cores, and on-chip memory buffers consisting of 5 KB receive and 22 KB transmit spaces. It supports up to 64 VLANs, jumbo frames up to 9 KB, and provides CPU task offload capabilities for TCP, IP, and UDP checksums.

Specialized Feature Summary

• Dual integrated 1000BASE-X Media Access Controllers (MACs) supporting full-duplex and half-duplex modes at 1000 Mbps
• PCI Express x4 Host Interface providing dedicated configuration space for each Ethernet controller function
• Universal Management Port (UMP) interface enabling high-speed system management traffic via the dual-GbE ports
• Integrated high-speed RISC cores facilitating custom frame features and comprehensive diagnostic software suite

Specialized Applications

• High-performance server applications requiring dual-port Gigabit connectivity
• Blade servers and rack-optimized server designs
• Dual-port Gigabit Ethernet Network Interface Controller (NIC) cards
• Highly integrated LAN on Motherboard (LOM) designs

Specialized Procurement Notes

Verify the exact suffix against official Broadcom documentation to confirm package type and temperature range specifications. Confirm current availability status as component lifecycles may change. Ensure compatibility with existing system power requirements, specifically the 1.2V, 2.5V, and 3.3V rails. Validate that the 484-pin PBGA footprint matches the target PCB design constraints.

Specialized Selection Notes

Select this controller for server environments demanding robust manageability and low-power operation. The inclusion of a Universal Management Port and IPMI-compliant interface makes it suitable for centralized system administration. Consider the integrated RISC cores for handling complex frame processing tasks without burdening the main processor. Ensure the application utilizes the PCI Express x4 interface for optimal bandwidth utilization.

Specialized Part Context

The BCM5715S series represents Broadcom's NetXtreme line of dual-port Gigabit Ethernet controllers designed for enterprise infrastructure. This specific model integrates MACs and SerDes transceivers into a single chip, reducing board complexity. It targets data center and enterprise server markets where high throughput and advanced network management features are critical for operational efficiency.

Specialized Replacement Considerations

Consult Broadcom datasheets for direct pin-compatible alternatives within the NetXtreme family. Verify if newer revisions offer enhanced performance or updated process technologies while maintaining functional equivalence for the PCI Express and UMP interfaces.