BCM54382C1KFBG Gigabit Ethernet Transceiver: Datasheet and Technical Overview

The BCM54382C1KFBG is a highly integrated, single-port Gigabit Ethernet transceiver from Broadcom, designed to provide robust and high-performance network connectivity for a wide array of applications. Manufactured using an advanced process technology, this transceiver combines a physical layer (PHY) transceiver with a wealth of features into a compact form factor, making it an ideal solution for enterprise switches, network interface cards (NICs), network-attached storage (NAS), and embedded systems.

Key Features and Architectural Overview

At its core, the BCM54382C1KFBG complies with the IEEE 802.3ab standard for 1000BASE-T Gigabit Ethernet over copper cabling. It supports auto-negotiation and auto-MDI/MDIX functions, enabling automatic selection of the highest possible data rate (10/100/1000 Mbps) and eliminating the need for crossover cables. A significant architectural advantage is its fully integrated DSP-based hybrid and echo cancellers, which allow for reliable operation over standard Category 5e unshielded twisted-pair (UTP) cabling.

The device features a flexible interface, typically connecting to a Media Access Controller (MAC) via a standard Reduced Gigabit Media Independent Interface (RGMII), simplifying design integration with most Ethernet switches and processors. Power efficiency is a critical design consideration, and the BCM54382C1KFBG supports advanced power-saving modes like Energy-Efficient Ethernet (EEE or 802.3az), which dramatically reduces power consumption during periods of low data activity.

Technical Specifications and Performance

Data Rates: 10/100/1000 Mbps.

Interface: RGMII (Supports 3.3V/2.5V/1.8V/1.5V HSTL).

Cabling: Operates over up to 100 meters of Category 5e UTP cable.

Package: The "C1KFBG" designation typically refers to a specific Pb-free, halogen-free package type, often a compact 64-pin QFN, suitable for automated surface-mount assembly.

Advanced Features: Includes support for Jumbo Frames (frames larger than the standard 1.5 KB) to improve throughput efficiency for large data transfers, and robust diagnostics capabilities for cable diagnostics and link quality monitoring.

Typical Applications

The robustness and integration level of the BCM54382C1KFBG make it a preferred choice for:

Enterprise and Cloud Data Center Switches

High-Performance Network Interface Cards (NICs)

Motherboard LAN (LOM) implementations

Network-Attached Storage (NAS) and Storage Area Network (SAN) equipment

Industrial and Embedded Networking Applications

ICGOO

The BCM54382C1KFBG stands as a testament to Broadcom's leadership in networking technology, offering a blend of high integration, superior signal integrity, and advanced power management. Its comprehensive feature set and reliable performance make it a cornerstone component for designing next-generation, energy-efficient networking equipment that demands gigabit speeds and robust connectivity.

Keywords:

1. Gigabit Ethernet Transceiver

2. IEEE 802.3ab

3. Energy-Efficient Ethernet (EEE)

4. RGMII Interface

5. Auto-Negotiation