Instant Quote

Home > Power Management ICs (PMIC) > AC-DC Converters > KSZ8863RLLI-TR

KSZ8863RLLI-TR

3-port 10/100 Ethernet switch, 2x copper PHY + 1x RGMII host, QoS, VLAN, SPI/MIIM/I2C, 128-LQFP industrial

2900

Effective Inventory
Go to Inquiry

Image for reference only

Manufacturer Part：

KSZ8863RLLI-TR

Package：

128-LQFP (14 x 14 x 1.4mm)

Brand：
Product Categories：
Quality Commitment
Shipping & Payment
Service & Packaging
Product Manual
Other recommendations you may be interested in.

STM32L072RBT6

TPS65217CRSLR

SN74HC273NSR

ADE7953ACPZ-RL

SN74HC138N

ATMEGA328-AU

AD826ARZ-REEL7

TPA0211DGNR

Description

Product Overview

The KSZ8863RLLI-TR is a highly integrated 3-port 10/100 Ethernet switch from Microchip Technology, featuring two 10/100 MAC/PHY transceivers and one 10/100/1000 RGMII/MII/RMII MAC-only port. It integrates all required PHYs, MACs, and switch fabric with advanced features including QoS, VLAN, MIB counters, and management via SPI/MIIM/I2C interfaces. The device is designed for industrial and embedded networking applications requiring compact, low-power Ethernet switching.

Key Specifications

Manufacturer Microchip Technology
Product Type 3-Port 10/100 Managed Ethernet Switch
Port Configuration 2x 10/100 MAC+PHY (copper), 1x 10/100/1000 RGMII/MII/RMII (host)
Switch Fabric Non-blocking, store-and-forward
MAC Address Table 1K entries
Frame Buffer 128KB internal SRAM
Management Interface SPI, MIIM (MDC/MDIO), I2C
QoS Support 4 queues per port, priority based on 802.1p, DSCP, or port
VLAN Support 802.1Q VLAN, port-based VLAN
Power Supply 1.2V core, 3.3V I/O
Operating Temperature -40°C to +85°C (industrial)
Package 128-LQFP (14x14mm)
Budgetary Price $5.20 @ 1ku

Features

  • 3-port switch with two integrated 10/100 copper PHYs and one RGMII/MII/RMII host port
  • Non-blocking wire-speed switching across all ports
  • 1K MAC address table with automatic learning and aging
  • 128KB frame buffer with shared memory architecture
  • 4 priority queues per port for QoS with 802.1p and DSCP classification
  • 802.1Q VLAN support with tag insertion/removal
  • Full MIB-II and RMON statistics counters
  • IGMP snooping for multicast optimization
  • SPI, MIIM, and I2C management interfaces for flexible configuration
  • MII/RMII/RGMII MAC interface for direct processor connection
  • Half and full duplex operation on all ports
  • Auto-MDIX on copper ports

Applications

  • Industrial Ethernet and factory automation
  • Embedded networking for IoT gateways
  • IP cameras and video surveillance systems
  • Printers and multifunction peripherals
  • Automotive Ethernet and telematics

The KSZ8863RLLI-TR is Microchip Technology’s highly integrated 3-port 10/100 managed Ethernet switch from the KSZ8863 family. It combines two 10/100Base-TX MAC/PHY transceivers with integrated magnetics-free copper PHYs and one 10/100/1000 RGMII/MII/RMII MAC-only host port, providing a complete single-chip Ethernet switching solution. The switch fabric supports non-blocking wire-speed forwarding with a 1K MAC address table and 128KB shared frame buffer. Advanced managed features include 4-queue QoS with 802.1p/DSCP classification, 802.1Q VLAN, IGMP snooping, and comprehensive MIB/RMON statistics. Configuration is supported via SPI, MIIM (MDC/MDIO), or I2C interfaces. The RGMII host port enables direct connection to processors running at up to 1000Mbps, making it ideal for embedded industrial networking applications.

Switching Fabric

The KSZ8863 employs a store-and-forward switching architecture with a 128KB shared SRAM frame buffer. Incoming frames are fully received and validated (FCS check) before being forwarded to the destination port(s). The 1K MAC address table is automatically populated through source address learning, with entries aged out after a configurable timeout. Broadcast, multicast, and unknown unicast frames are flooded to all ports within the same VLAN.

PHY Transceivers

The two copper PHYs implement IEEE 802.3 10Base-T and 100Base-TX with auto-negotiation, auto-MDIX crossover detection, and energy-detect power-down. The PHYs include integrated line-side termination, eliminating the need for external magnetics in some PCB layouts. Each PHY supports half and full duplex operation at both 10Mbps and 100Mbps.

Host MAC Interface

The third port provides a MAC-only interface supporting RGMII (10/100/1000Mbps), MII (10/100Mbps), and RMII (10/100Mbps) modes, configurable via strap pins or management registers. This port connects directly to an external processor or SoC, enabling the switch to serve as a multi-port Ethernet expansion for embedded systems.

QoS and Traffic Management

Each port supports 4 traffic queues with strict priority scheduling. Frames are classified into queues based on 802.1p priority tags, IPv4 DSCP values, or port-based default priority. This ensures latency-sensitive traffic (e.g., industrial control, VoIP) receives preferential treatment over best-effort data.

Pin Group Name Type Function
1-16 PORT1 TX/RX I/O Port 1 copper PHY transmit and receive pairs (TRD1±, etc.)
17-32 PORT2 TX/RX I/O Port 2 copper PHY transmit and receive pairs (TRD2±, etc.)
33-48 RGMII/MII I/O Host port MAC interface (TXD, RXD, TXC, RXC, TXEN, RXDV, etc.)
49-56 CONTROL I/O Strap pins, LED outputs, reset, interrupt
57-64 MIIM/SPI/I2C I/O Management interface pins (MDC/MDIO, SPI CS/CLK/DO/DI, I2C SCL/SDA)
65-80 POWER Power VDD (1.2V core), VDDIO (3.3V), GND, analog supply pins
  • Industrial Ethernet switches and gateways requiring managed QoS and VLAN features with -40°C to +85°C operation
  • Embedded IoT gateways needing multi-port Ethernet with direct processor connection via RGMII host interface
  • IP camera and video surveillance systems leveraging IGMP snooping for efficient multicast video distribution
  • Printers, scanners, and MFPs requiring compact dual-port Ethernet with auto-MDIX for simplified cabling
  • Automotive telematics and head units requiring industrial-grade Ethernet switching with SPI management
Manufacturer Part Number Package Notes
Microchip KSZ8863MLL 128-LQFP Commercial grade (0°C to +70°C)
Microchip KSZ8895RQI 128-LQFP 5-port 10/100 switch with 4 copper PHYs
Microchip KSZ8893RQI 128-LQFP 3-port variant with different interface options
Realtek RTL8304NB-CG QFP-128 4-port 10/100 switch, managed
TI DP83867IRPAP HTQFP-48 Single-port Gigabit PHY (for comparison, not a switch)
Recommend Parts

ATMEGA328-AU

8-bit AVR MCU, 20MHz, 32KB Flash, 2KB SRAM, TQFP-32, NRND

Brand:

Package:

TQFP-32 (7×7×1.05 mm)
In stock:
13010pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

PM4351-RGI

E1/T1 Line Interface Unit, 8.192Mbps, short/long haul, integrated CDR, 80-MQFP, 3.3V

Brand:

Package:

80-MQFP (14x14mm)
In stock:
14099pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AT91SAM7X256C-AU

ARM7TDMI MCU, 55MHz, 256KB Flash, 64KB SRAM, Ethernet MAC, USB, CAN, LQFP-100

Brand:

Package:

LQFP-100
In stock:
3752pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

MIC29302AWU-TR

3A adjustable LDO, 1.24-15V output, 450mV dropout, TO-263-5, fast transient response

Brand:

Package:

TO-263-5 (10.67 x 9.17 x 4.6 mm)
In stock:
7577pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

MCP4921-E/SN

12-bit single-channel voltage DAC, SPI, rail-to-rail output, 2.7-5.5V, SOIC-8, AEC-Q100

Brand:

Package:

SOIC-8 (4.9 x 3.9 mm)
In stock:
2849pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

ATMEGA328-AUR

8-bit AVR MCU, 32KB Flash, 2KB SRAM, 23 I/O, 8ch 10-bit ADC, TQFP-32, T&R

Brand:

Package:

TQFP-32 (7.0 x 7.0 x 1.05mm)
In stock:
6946pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry
Quality Assurance

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Company
insights
Industries
All Products
Integrated Circuits
C&I Devices
Discrete
Memory Chips
MPUs & MCUs