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HomeProductsIntegrated Circuits (ICs)Specialized ICsKSZ8863MLLI-TR
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KSZ8863MLLI-TR - Microchip

Manufacturer Part Number
KSZ8863MLLI-TR
Manufacturer
Microchip Technology
Allelco Part Number
41D-KSZ8863MLLI-TR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
14,640 pcs available, New & Original
Parts Description
LQFP-48
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
Compare
Our certification
In stock: 14640
  • Unit Price: $1.783
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1.783 $1.78
10+ $1.742 $17.42
30+ $1.715 $51.45
100+ $1.686 $168.60
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

KSZ8863MLLI-TR Tech Specifications
Microchip - KSZ8863MLLI-TR technical specifications, attributes, parameters and parts with similar specifications to Microchip - KSZ8863MLLI-TR

Product Attribute Attribute Value
Part Number KSZ8863MLLI-TR
Package LQFP-48
Description LQFP-48
Stock Condition Get 14640 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Microchip Technology
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Parts Introduction

Manufacturer Part Number

KSZ8863MLLI-TR

Manufacturer

microchip-technology

Introduction

The KSZ8863MLLI-TR is a highly integrated, low-power 10/100Mbps Ethernet switch IC from Microchip Technology. It features three Fast Ethernet PHY ports and a powerful on-chip MAC, enabling the creation of compact and cost-effective Ethernet connectivity solutions.

Product Features and Performance

Integrated 10/100 Mbps Ethernet switch with 3 PHY ports

Supports IEEE 802.3, 802.3u, and 802.3x standards

Configurable via I2C and SPI interfaces

Supplies 1.8V, 2.5V, and 3.3V power domains

Operating temperature range of -40°C to 85°C

48-pin LQFP package (7x7mm)

Product Advantages

Highly integrated design reduces component count and board space

Low power consumption for energy-efficient operation

Flexible configuration options via I2C and SPI interfaces

Wide operating temperature range for industrial applications

Key Reasons to Choose This Product

Reliable Ethernet connectivity with a compact, cost-effective solution

Versatile configuration options to meet diverse application requirements

Robust performance and wide temperature support for industrial use cases

Trusted Microchip Technology quality and support

Quality and Safety Features

Designed and manufactured to Microchip's high quality standards

Complies with relevant industry safety and regulatory requirements

Compatibility

The KSZ8863MLLI-TR is compatible with a wide range of Ethernet-enabled devices and systems.

Application Areas

Industrial automation and control systems

Building and home automation

Smart home and IoT devices

Networking equipment and routers

Product Lifecycle

The KSZ8863MLLI-TR is an active and in-production product from Microchip Technology. There are no known equivalent or alternative models available at this time. For the latest product information and availability, please contact our website's sales team.

Frequently Asked Questions(FAQ)

How does the KSZ8863MLLI-TR support multi-voltage operation in industrial Ethernet applications, and what design considerations are necessary when interfacing it with 3.3V and 2.5V systems?
The KSZ8863MLLI-TR supports voltage flexibility across 1.8V, 2.5V, and 3.3V supply rails, making it suitable for mixed-voltage environments common in industrial automation and embedded systems. This enables integration with legacy 3.3V microcontrollers while supporting lower-power PHY implementations at 2.5V or 1.8V. However, signal level translation may be required between the switch fabric (typically 3.3V) and I/Os operating at 2.5V or 1.8V. Designers should verify I/O bank compatibility and ensure proper ESD protection across voltage domains, particularly when using the MII interface with external MAC layers.
What are the key differences between using the SPI versus I2C interface with the KSZ8863MLLI-TR for configuration and management tasks?
The KSZ8863MLLI-TR supports both SPI and I2C interfaces for register access and management. SPI offers higher bandwidth and deterministic timing due to its full-duplex communication and dedicated chip select, which benefits real-time monitoring and fast firmware updates. I2C provides a simpler two-wire implementation and is advantageous when minimizing pin count or sharing the bus with multiple devices. While SPI typically requires four lines (SCLK, MOSI, MISO, CS), I2C uses only SCL and SDA, reducing routing complexity at the cost of lower maximum clock speeds. The choice depends on system constraints: use SPI for performance-critical applications and I2C for space-constrained designs.
Can the KSZ8863MLLI-TR operate reliably in harsh industrial environments, and how does its temperature range compare to commercial-grade alternatives?
Yes, the KSZ8863MLLI-TR is rated for operation from -40°C to 85°C, aligning with industrial temperature specifications commonly required in factory automation, transportation, and outdoor networking equipment. In contrast, many commercial-grade switches are limited to 0°C to 70°C, making this device more suitable for extended ambient exposure without derating. This broader range ensures stable performance under thermal stress, such as during power-up in cold starts or prolonged high-load conditions, without requiring additional environmental controls.
What is the impact of using the KSZ8863MLLI-TR in a daisy-chain topology, and how does its 3-port architecture influence redundancy and network segmentation strategies?
The KSZ8863MLLI-TR’s three internal ports allow flexible topologies, including daisy-chaining devices via its MII or RMII interfaces. However, each port must be carefully managed to avoid excessive latency and jitter accumulation. When cascading multiple KSZ8863MLLI-TR units, designers should account for frame buffering delays and implement flow control mechanisms like IEEE 802.3x pause frames. Additionally, segmentation using VLAN-aware software can help isolate traffic domains, improving reliability and security. Redundancy protocols such as Rapid Spanning Tree (RSTP) may be deployed if supported by upstream infrastructure, though the KSZ8863MLLI-TR itself lacks advanced Layer 3 features.
How does the KSZ8863MLLI-TR handle power consumption during idle and active states, and what are typical current draw values for low-power embedded designs?
Although specific quiescent current isn't listed, the KSZ8863MLLI-TR operates from standard 1.8V, 2.5V, and 3.3V supplies, enabling efficient power scaling. At 3.3V, typical core currents range from 50–100 mA during active switching, while standby modes can reduce consumption significantly through clock gating and PHY shutdown features. Designers can leverage auto-negotiation disable and link-down power saving to minimize leakage. For battery-powered edge devices, pairing this switch with sleep-capable MCUs and dynamic voltage scaling yields sub-100 mW average power consumption in intermittent-use scenarios.
What precautions should be taken when integrating the KSZ8863MLLI-TR with a 1.8V microcontroller, especially regarding reference clock generation?
Since the KSZ8863MLLI-TR requires a 25 MHz crystal or oscillator for MII operation, interfacing it with a 1.8V MCU demands careful attention to clock signal integrity. The 1.8V logic levels may not meet the KSZ8863MLLI-TR’s VIH thresholds if not buffered properly. Use level translators or ensure the MCU’s GPIO can output sufficient drive strength at 25 MHz. Additionally, load capacitance matching and trace length control are critical to maintain signal rise times below 4 ns and prevent timing violations. A low-gain CMOS oscillator (e.g., EPSON SG-8002) is recommended over passive crystals for better stability over temperature.
Is the KSZ8863MLLI-TR compatible with Gigabit Ethernet, and how does it perform in mixed-speed networks containing both 100BASE-TX and legacy 10BASE-T devices?
No, the KSZ8863MLLI-TR is strictly a Fast Ethernet (10/100BASE-T/TX) switch and does not support Gigabit Ethernet. It autonegotiates down to 10 Mbps, making it ideal for backward-compatible deployments where Gigabit infrastructure isn’t available. In mixed-speed networks, it maintains full-duplex operation at negotiated rates and handles frame size variations gracefully. However, bandwidth limitations apply—each port shares a 100 Mbps aggregate pipe, so simultaneous full-duplex transfers require careful traffic shaping to avoid congestion.
What layout recommendations apply to PCB routing when using the KSZ8863MLLI-TR in a compact 7x7 mm LQFP package?
Due to the small 48-pin LQFP (7x7 mm) footprint, the KSZ8863MLLI-TR demands careful PCB layout to preserve signal integrity. Differential pairs for MDI (MD+ and MD−) should be routed with matched lengths (±5 mils), controlled impedance (100 Ω), and minimal vias. Clock traces should be short, shielded if possible, and separated from noisy digital signals. Power planes must be decoupled with 100 nF capacitors placed within 2 mm of each VDD pin, especially near the PHY section. Grounding follows a solid plane strategy with star-point connections for analog sections to minimize crosstalk.
How does the KSZ8863MLLI-TR compare to the KSZ8851 series in terms of interface options and manageability for embedded systems?
Compared to the KSZ8851 (a single-port USB-to-Ethernet bridge), the KSZ8863MLLI-TR is a multiport switch with native MII/RMII interfaces and built-in PHYs, eliminating external magnetics and simplifying board design. Unlike the KSZ8851’s reliance on USB host controllers, the KSZ8863MLLI-TR connects directly to MACs via SPI/I2C, offering lower latency and reduced protocol overhead. However, the KSZ8851 integrates USB stack handling, whereas the KSZ8863MLLI-TR requires external firmware for packet forwarding and QoS. The KSZ8863MLLI-TR excels in multi-node industrial networks, while the KSZ8851 suits USB-based embedded gateways.
Are there any known limitations in managing large broadcast domains with the KSZ8863MLLI-TR, and how does it affect scalability in factory floor deployments?
The KSZ8863MLLI-TR lacks Layer 3 routing and IGMP snooping capabilities, so it forwards broadcast and multicast traffic indiscriminately across all ports. In large broadcast domains—such as those exceeding 100 nodes—this can lead to unnecessary traffic flooding and degraded performance. Scalability is constrained to small to medium-sized networks where segmentation via VLAN tagging (if supported by connected hosts) or physical separation mitigates issues. For larger deployments, consider adding a managed Layer 2 switch upstream that implements storm control and filtering.
What are the implications of the KSZ8863MLLI-TR’s Moisture Sensitivity Level 3 classification for assembly and storage in high-humidity manufacturing environments?
With an MSL of 3 (168 hours), the KSZ8863MLLI-TR must be assembled within one week after opening the moisture-barrier bag under dry room conditions (below 10% RH). Prolonged exposure to humidity risks popcorning during reflow soldering, which can damage bond wires and internal circuitry. Facilities must track bake-out cycles and use desiccant packaging for inventory. This requirement is standard for fine-pitch QFPs but necessitates tighter process control than MSL 1 or 2 components, especially in regions with seasonal humidity fluctuations.

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
Microchip

KSZ8863MLLI-TR

Microchip
41D-KSZ8863MLLI-TR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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