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BCM54680B0KFBG

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BCM54680B0KFBG

Part NumberBCM54680B0KFBG
ManufacturerBroadcom Limited
CategoryIntegrated Circuits (ICs) > Interface – Telecom / Ethernet Transceivers (PHY)
DescriptionHigh-density, low-power octal-port 10/100/1000BASE-T Gigabit Ethernet transceiver (PHY) integrating QSGMII/SGMII MAC interfaces and advanced cable diagnostics for enterprise switches and high-density routers.
Stock StatusIn Stock
OriginOriginal Factory

Product Overview

The BCM54680B0KFBG is an 8-port Gigabit Ethernet PHY from Broadcom for high-density network equipment. This single-chip device integrates eight independent 10/100/1000BASE-T transceivers to reduce PCB size and routing complexity. It supports QSGMII and SGMII interfaces to cut MAC connection pin counts. Equipped with Broadcom DSP technology, it delivers robust anti-interference and crosstalk suppression for CAT5 copper cables. Packaged in 400-BGA halogen-free housing, it serves as core chip for enterprise switches, edge routers and communication infrastructure.

Core Advantages

Ultra-High Density Octal-Port Integration

Unifies eight distinct Gigabit PHY channels onto a single silicon die, reducing the physical layout footprint and thermal management overhead compared to multi-chip discrete implementations.

Advanced QSGMII Interface Protocol

Utilizes Quad SGMII links to combine four ports of data into a single differential pair channel, significantly minimizing the overall I/O pin count, board layers, and routing congestion for system designers.

Innovative Energy Efficient Ethernet (EEE)

Fully compliant with the IEEE 802.3az standard, dynamically scaling power consumption based on real-time network traffic loads to reduce data center power dissipation during periods of low activity.

Comprehensive On-Chip Cable Diagnostics

Integrates advanced digital cable testing utilities that autonomously analyze network cabling conditions, pinpointing distance-to-fault anomalies, shorts, and opens without disrupting operational network streams.

Key Specifications

BrandBroadcom Limited
RoHS StatusRoHS 10 Compliant, Halogen-Free & Lead-Free packaging
EDA/CAD Model3D Model & PCB Footprint Available upon request
Warranty1-Year Standard Factory Warranty
Package / Case400-FBGA (21×21mm)
Mounting TypeSurface Mount Technology (SMD/SMT)
Surface Marking / SilkscreenBCM54680B0KFBG Marking
Data Transfer Rate10 / 100 / 1000 Mbps (Triple-Speed Auto-Negotiation Support)
Number of Ports8 Independent Ports (Octal PHY Configuration)
MAC Interface StandardQSGMII (Quad SGMII) and SGMII Support
Physical Layer Interface10BASE-T, 100BASE-TX, and 1000BASE-T Copper Line Side Connectivity
Standard ComplianceIEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3az (EEE)
Diagnostic FunctionsIntegrated Loopback Modes, PRBS Generation, and Link Quality Monitors
Silicon Revision CodeB0 Stepping Core Architecture
Operating Temperature RangeCommercial Specification Operational Envelope (0°C to +70°C Case Boundary)

Typical Applications

  • High-Density Enterprise LAN Switches and Layer 2 / Layer 3 Managed Network Infrastructure
  • Cloud Data Center Top-of-Rack (ToR) Aggregation Swappable Modules and Blade Server Backplanes
  • Edge Routing Telecommunication Hardware, Carrier Ethernet Gateways, and Broadband Access Concentrators
  • Multi-Port Network Interface Cards (NICs), High-Performance Server Controller Adapters
  • Industrial Computing Hubs, Heavy Security Appliance Aggregators, and Distributed High-Volume Storage Arrays

Order & Shipping Info

Minimum Order Quantity (MOQ)1 Piece
Shipping TimeShipped within 1-2 business days
Delivery Time3-7 working days worldwide
Shipping MethodsDHL, UPS, FedEx, EMS
Payment MethodsT/T (Bank Transfer), PayPal, Credit Card, Western Union

Technical Support

For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.

Frequently Asked Questions

Q1: Is your BCM54680B0KFBG inventory fully original factory stock?

A: Yes, all BCM54680B0KFBG transceivers are brand-new genuine Broadcom parts, stored and shipped under strict ESD anti-static and MSL moisture-proof dry-pack standards.

Q2: How does QSGMII reduce hardware manufacturing cost?

A: QSGMII combines four SGMII channels into one differential pair, cutting signal traces by nearly 75%. It simplifies PCB routing and allows lower-layer, cheaper circuit boards.

Q3: Does BCM54680B0KFBG support power saving under light traffic?

A: Yes, it fully supports IEEE 802.3az EEE. The chip automatically enters low-power idle mode during idle periods to cut power consumption without link interruption.

Q4: How to get layout documents, register guides and bulk price tiers?

A: Fill out the Quick Inquiry form on this page. Our technical team will send complete datasheets and wholesale quotations within 24 hours.

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