B50612EB1KMLG [Broadcom]

Product Overview

Broadcom Limited B50612EB1KMLG is a single-port Gigabit Ethernet physical-layer transceiver designed to provide the PHY connection between an Ethernet MAC and a network interface. It is categorized as an interface transceiver IC and supports a maximum Ethernet data rate of 1Gbps.

The device is intended for embedded networking equipment requiring one wired Gigabit Ethernet port. Its PHY integration reduces the amount of discrete analog and digital circuitry needed between the system processor and Ethernet magnetics. Reference design information identifies the exact part in a 48-pin QFN package with 0.5mm lead pitch.

The supplied references list B50612EB1KMLG in tray packaging, with a factory pack quantity of 1,820 units. A publicly accessible Broadcom datasheet containing its complete electrical specifications was not located, so supply rails, MAC-side interface, operating temperature, power consumption, and optional Ethernet features should be confirmed through Broadcom’s controlled technical documentation before design-in.

Part Number Breakdown

Key Parameters

Competitive Advantages

Key Features

1. Single-Port Gigabit Ethernet PHY

The B50612EB1KMLG integrates the physical-layer transceiver required for one Gigabit Ethernet connection.

Advantages:

• Supports one high-speed wired network port
• Reduces external PHY circuitry
• Suitable for single-port embedded network designs
• Separates physical-layer processing from the host MAC

2. 1Gbps Network Capability

The device is classified as a Gigabit Ethernet PHY, providing physical-layer support for network data rates up to 1Gbps.

Advantages:

• Supports bandwidth-intensive embedded applications
• Suitable for broadband and network infrastructure
• Improves throughput compared with Fast Ethernet-only designs
• Handles high-volume local network traffic

3. Integrated Transmit and Receive Functions

As an Ethernet PHY, the device performs the physical signaling functions between the Ethernet controller and external network connection.

Advantages:

• Combines transmit and receive signal processing
• Simplifies host-processor Ethernet implementation
• Reduces the need for discrete analog interface circuitry
• Supports modular MAC-and-PHY system architectures

4. Compact QFN-48 Implementation

Reference design documentation identifies the exact ordering part as a 48-pin QFN device with 0.5mm terminal pitch.

Advantages:

• Provides a compact surface-mount footprint
• Supports high-density PCB layouts
• Offers short signal paths for high-speed routing
• Compatible with automated board assembly

5. Suitable for Embedded Networking Platforms

The component has been documented in embedded systems including wireless access points and broadband router platforms.

Advantages:

• Fits processor-based networking equipment
• Suitable for systems adding a dedicated Ethernet port
• Supports compact consumer and infrastructure hardware
• Applicable to integrated gateway designs

6. Documented Replacement Option

A Broadcom product-obsolescence notification identified B50612EB1KMLG as a suggested replacement for the discontinued B50610C1KMLG.

Advantages:

• Provides a manufacturer-identified migration option
• Supports maintenance of established Ethernet designs
• May reduce redesign effort for affected legacy platforms
• Helps extend the service life of existing products

Applications

Network Infrastructure

• Ethernet routers
• Network switches
• Wired gateways
• Wireless access points
• Network interface modules
• Ethernet bridge equipment

Broadband and Multimedia Equipment

• Broadband customer-premises equipment
• Home gateways
• Set-top boxes
• Cable and DSL networking equipment
• Multimedia distribution systems

Embedded and Edge Systems

• Embedded processor boards
• Industrial edge gateways
• Network-connected controllers
• Security and monitoring equipment
• Communication appliances
• Single-port Ethernet expansion modules