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BCM5248UA4KQMG P14

10/100 Ethernet PHY, RGMII/MII, QFN-40

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Manufacturer Part：

BCM5248UA4KQMG P14

Package：

QFN-40 (6x6mm)

Brand：
Product Categories：
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Description

Product Overview

The BCM5248UA4KQMG P14 from Broadcom is a single-port 10/100 Ethernet PHY transceiver with RGMII/MII interface, auto-negotiation, and IEEE 802.3 compliance in QFN-40 for embedded networking.

Key Specifications

Speed 10/100 Mbps
Interface RGMII/MII
Auto-Negotiation Yes
Supply 3.3V
Temp -40~85C

Features

  • 10/100 Ethernet PHY
  • RGMII/MII MAC interface
  • Auto-negotiation
  • HP Auto-MDIX
  • IEEE 802.3 compliant

Applications

  • Embedded networking
  • Industrial Ethernet
  • Networked appliances
  • IoT gateways

The BCM5248UA4KQMG P14 from Broadcom is a single-port 10/100 Ethernet PHY transceiver with RGMII/MII interface, auto-negotiation, and IEEE 802.3 compliance in QFN-40 for embedded networking.

The BCM5248UA4KQMG is a 10/100 Ethernet PHY transceiver from Broadcom in QFN-40 (P14 revision). It implements the physical layer of the OSI model, connecting the MAC layer to the physical medium via the RGMII (Reduced Gigabit Media Independent Interface) or MII (Media Independent Interface). The transmitter takes 4-bit parallel data from the RGMII, performs 4B/5B encoding, scrambles the data to reduce EMI, and drives the differential MDI pair (TXP/TXN) through an internal DAC. The receiver recovers clock from the incoming signal using a digital PLL, equalizes the signal to compensate for cable loss, decodes 5B/4B, and presents data to the MAC via RGMII. Auto-negotiation (IEEE 802.3u) exchanges link capabilities with the link partner to select the highest common speed and duplex. The MIIM interface provides register access for configuration and status monitoring, supporting Clause 22 management. Internal loopback modes aid diagnostics.

Pin Name Type Function
1 VDDA Power Analog 3.3V supply
2 TXD0/1/2/3 I/O RGMII transmit data bits 0-3
3 TXC I/O RGMII transmit clock
4 TXCTL I/O RGMII transmit control
5 RXD0/1/2/3 I/O RGMII receive data bits 0-3
6 RXC I/O RGMII receive clock
7 RXCTL I/O RGMII receive control
8 CLK_25M I/O 25MHz reference clock I/O
9 MDC Input MIIM management clock
10 MDIO I/O MIIM management data
11 INT Output Interrupt output
12-40 VDDIO/GND/LED/TXP/TXN/RXP/RXN Power/Analog Power, ground, LED, and MDI pins
  • Embedded networking
  • Industrial Ethernet
  • Networked appliances
  • IoT gateways
    • Manufacturer Part Number Package Notes
    Broadcom BCM5221KQMG QFN-40 10/100 PHY, similar feature set
    Realtek RTL8201F-VB-CG QFN-32 10/100 PHY, RGMII/MII
    Microchip KSZ8081MNXIA QFN-24 10/100 PHY, compact
    Texas Instruments DP83848JVVB LQFP-40 10/100 PHY, MII/RMII
    Analog Devices ADIN1300CCPZ LQFP-48 10/100/1000 PHY, industrial
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    Quality Assurance

    Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

    1. Authorized & Genuine Sourcing Promise

    All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

    2. Strict Full-batch Quality Inspection

    We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

    3. Industry Standard Compliance

    Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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    • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

    4. Professional Reliability Control

    For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

    5. Traceability Management System

    We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

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    If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

    Contact Us

    If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

     

    Email: info@materialparts.com
    Tel / WhatsApp: +86 13760382860
    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

     

    Shipping & Payment

    Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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      US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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      All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

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    • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
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    • Air Freight: 7 – 12 working days
    • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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      Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

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      We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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      All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

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      All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

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    5. Local Pickup in Shenzhen

    Local pickup service is available for customers in Shenzhen and surrounding areas:
    • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
    • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
    • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

    Contact Information

    Email: info@materialparts.com

    Tel / WhatsApp: +86 13760382860

    Service & Packaging

    Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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    2. Genuine Product Guarantee & Full-process Quality Inspection

    All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

    3. Fast Quotation & Order Processing

    Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

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    6. Global Logistics & Document Services

    We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

    Professional Packaging Standards

    Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

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    • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

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    We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

    Contact Information

    For service consultation or packaging customization, please feel free to contact us:
    Email: info@materialparts.com
    Tel / WhatsApp: +86 13760382860
    Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
     

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