KSZ8893MQL - 3-Port 10/100 Managed Ethernet Switch | Microchip
MPN： KSZ8893MQL ✓ 啟用中KSZ8893MQL 概覽
A managed Ethernet switch is a Layer 2 network device that forwards Ethernet frames between multiple ports while adding features such as VLAN tagging, port-based and tag-based prioritization, rate limiting, QoS, management access, and auto-negotiation. The KSZ8893MQL combines those switch-management functions with PHY transceivers, reducing the component count and board area required for embedded network equipment.
The KSZ8893MQL supports 10BASE-T and 100BASE-TX copper links, while one integrated PHY supports 100BASE-FX. According to the Microchip product page and manufacturer datasheet, the device provides an extensive feature set for cost-sensitive switching systems, including rate limiting, tag/port-based VLAN support, QoS priority, and management capabilities. Its interface supports I2C and SPI control, as identified by distributor listings.
The switch fabric is non-blocking and includes a dedicated address-lookup engine and on-chip frame-buffer memory. These resources support simultaneous frame handling across the integrated ports while reducing the processing burden on an external host processor. The device can therefore serve as the central Ethernet switching element in industrial control, embedded instrumentation, communications equipment, and compact network-edge systems.
The KSZ8893MQL operates from a 3.3 V supply and supports non-volatile configuration storage and an enable or shutdown function, according to the verified distributor data. It also conforms to the IEEE 802.3u auto-negotiation protocol, allowing link partners to select the best common operating mode. The 128-PQFP package is surface mount and lead-free.
Designers should preserve the required separation between copper Ethernet magnetics, fiber circuitry, power distribution, and the digital management interface. The manufacturer datasheet should be used for exact pin assignments, electrical limits, timing, register definitions, and layout guidance. The KSZ8893MQL is most appropriate when a design needs a small, managed three-port 10/100 Ethernet switch with integrated copper and optional fiber interfaces rather than a higher-port-count or higher-speed switch.
This page combines the verified manufacturer, distributor, and cross-reference information with package-focused selection guidance, commercial data, and practical differentiation between documented same-family configurations.
直接替換替代品，適用於 KSZ8893MQL — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
KSZ8893MQL-AM-TR
✅ 直接替換📋 參考替代品（不在目錄中）
KSZ8893MQL-AM
✅ 直接替換📋 參考替代品（不在目錄中）
KS8893MQLI
✅ 直接替換📋 參考替代品（不在目錄中）
KSZ8893MQL 最大額定值與電氣特性
| Device Type | 3-port 10/100 Mbps managed Ethernet switch |
| Layer | Layer 2 |
| Integrated Transceivers | 2 integrated 10/100 transceivers |
| Copper PHY Support | 10BASE-T and 100BASE-TX |
| Fiber PHY Support | 100BASE-FX on one PHY |
| MAC Units | 3 |
| Switch Fabric | High-speed non-blocking switch fabric |
| Address Lookup | Dedicated on-chip address-lookup engine |
| Frame Buffer | On-chip frame-buffer memory |
| Management Features | Rate limiting, VLAN, QoS priority, and management |
| VLAN Support | Tag/port-based VLAN |
| Control Interface | I2C and SPI |
| 供應電壓 | 3.3 V |
| Configuration Storage | Non-volatile configuration storage |
| Power Control | Enable and shutdown function |
| Auto-Negotiation | IEEE 802.3u Clause 28 |
| 封裝 | 128-PQFP, 14 x 20 mm |
| 安裝類型 | Surface mount |
| Lead-Free Status | Lead-free package |
KSZ8893MQL 128-pqfp, 14 x 20 mm 腳位配置指南
KSZ8893MQL（128-pqfp, 14 x 20 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： KSZ8893MQL.
請參閱 資料表 以查看完整腳位配置。
典型應用
KSZ8893MQL 適用於 6 應用s: Industrial Ethernet Control, Fiber-to-Copper Network Gateway, Embedded Test and Measurement, Embedded Communications Equipment, Automotive Network Interface Module, Network Security Appliance.
Industrial Ethernet Control
The KSZ8893MQL fits compact industrial Ethernet control equipment that needs three managed 10/100 Mbps ports rather than a larger switching backbone. Its two integrated 10/100 transceivers support 10BASE-T and 100BASE-TX links, while the third PHY can support 100BASE-FX for a fiber uplink. The managed Layer 2 feature set includes rate limiting, tag/port-based VLAN, QoS priority, and non-blocking switching. An I2C or SPI host can configure the device, and non-volatile configuration storage supports repeatable startup behavior. For deployments requiring an explicitly industrial-temperature ordering option, KS8893MQLI/MBLI should be evaluated. The 128-PQFP package requires careful high-speed and isolation-aware layout, with Ethernet magnetics, power distribution, and the management interface separated as directed by the manufacturer datasheet.
推薦
Fiber-to-Copper Network Gateway
The KSZ8893MQL is appropriate for a small fiber-to-copper gateway because one integrated PHY supports 100BASE-FX while the other 10/100 PHYs support copper 10BASE-T and 100BASE-TX. This combination allows fiber connectivity to be introduced without adding a separate media-conversion block. The high-speed non-blocking switch fabric, three MAC units, address-lookup engine, and on-chip frame-buffer memory handle Layer 2 forwarding within the device. VLAN support can segment traffic between local copper devices and the fiber uplink, while QoS priority helps distinguish operational traffic from less time-sensitive traffic. The 3.3 V supply and I2C/SPI management interfaces simplify integration into embedded gateway platforms. Exact fiber-media electrical requirements, magnetics selection, and layout must follow the official Microchip datasheet rather than be inferred from the general 100BASE-FX support statement.
推薦
Embedded Test and Measurement
The KSZ8893MQL can serve as the managed Ethernet switching element in compact test and measurement equipment that must collect data from several 10/100 instruments or embedded modules. Three MAC units, a non-blocking switch fabric, dedicated address lookup, and on-chip frame buffering allow the device to forward traffic while reducing host-processor involvement. Rate limiting can constrain noncritical traffic on shared laboratory networks, and port- or tag-based VLANs can separate measurement traffic from management access. Auto-negotiation under IEEE 802.3u supports links with mixed 10 Mbps and 100 Mbps capabilities. The I2C and SPI control interfaces allow configuration by an embedded controller, while non-volatile storage can retain management settings. The 128-PQFP, 14 x 20 mm package is compact but requires an assembly process capable of handling its fine-pitch lead-free land pattern and adequate thermal design for sustained port activity.
推薦
Embedded Communications Equipment
The KSZ8893MQL fits embedded communications equipment requiring a low-port-count managed Ethernet switch with copper and fiber flexibility. It integrates two 10/100 transceivers, three MAC units, a non-blocking switching core, address lookup, and frame-buffer memory into a single 3.3 V device. The third PHY's 100BASE-FX capability permits a fiber port for longer-distance links, while copper ports can connect local controllers or service interfaces. VLAN support can segment operational, management, and update traffic; QoS priority can protect selected flows; and rate limiting can reduce congestion on shared links. Configuration through I2C or SPI keeps host-controller integration straightforward, and non-volatile configuration storage supports deterministic restart behavior. Board-level implementation should follow the official datasheet for clocking, termination, media-interface layout, and package-specific routing to preserve Ethernet signal integrity.
推薦
Automotive Network Interface Module
The automotive-grade KSZ8893MQL-AM-TR family configuration is relevant for vehicle-network interface modules that need managed 10/100 Ethernet connectivity and optional fiber support. The standard KSZ8893MQL architecture includes two 10/100 transceivers, three MAC units, a non-blocking switch fabric, dedicated address lookup, and frame-buffer memory, while VLAN, QoS, and rate-limiting functions help organize traffic within a constrained embedded network. For production automotive use, the exact ordering suffix, automotive qualification, temperature range, and customer-specific quality requirements must be verified against Microchip documentation. The 128-PQFP package is surface mount and lead-free. Its high pin count makes assembly, inspection, and rework planning important, while Ethernet trace routing and copper isolation must comply with the manufacturer's layout guidance. The standard-grade MPN should not be assumed equivalent without confirming the automotive qualification requirement.
推薦
Network Security Appliance
The KSZ8893MQL is suitable for a small network-edge appliance that needs three managed Layer 2 ports in a limited physical footprint. A typical appliance can use two copper ports for management and service connectivity while dedicating the 100BASE-FX-capable PHY to an upstream fiber connection. VLAN support allows segmentation of management, user, and trusted-service traffic, while rate limiting can constrain accidental or nonessential traffic bursts. The device's dedicated address lookup, frame-buffer memory, and non-blocking fabric perform forwarding independently of the main application processor, which can concentrate on inspection, policy, or tunneling functions. Management is available through I2C or SPI rather than requiring a dedicated external switch controller. The 3.3 V architecture simplifies common embedded power rails, but designers still need to allocate appropriate copper magnetics, isolate copper and fiber interfaces, and verify every pin, timing value, and layout requirement in the official 128-PQFP datasheet.
推薦
推薦產品摘要
工程參考資料，適用於 KSZ8893MQL — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | KSZ8893MQL-AM-TR | KSZ8893MQL-AM | KS8893MQLI |
|---|---|---|---|---|
| Package | 128-PQFP (14 x 20 mm) | 128-PQFP (14 x 20 mm) - same family package | 128-PQFP (14 x 20 mm) - same family package | 128-PQFP (14 x 20 mm) - same family package |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Device Class | 3-port 10/100 managed Layer 2 Ethernet switch | Automotive-grade KSZ8893 family configuration | Automotive-grade KSZ8893 family configuration | Industrial-temperature KSZ8893 family configuration |
| Copper Ethernet Support | 10BASE-T and 100BASE-TX | 10BASE-T and 100BASE-TX | 10BASE-T and 100BASE-TX | 10BASE-T and 100BASE-TX |
| Fiber Ethernet Support | 100BASE-FX on one PHY | 100BASE-FX on one PHY | 100BASE-FX on one PHY | 100BASE-FX on one PHY |
| Integrated Transceivers | 2 | 2 | 2 | 2 |
| MAC Units | 3 | 3 | 3 | 3 |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Management Interface | I2C and SPI | I2C and SPI | I2C and SPI | I2C and SPI |
主要差異化特點
- Integrated three-port managed switching (對比KSZ8893MQL-AM-TR)
- Copper and fiber in one switch (對比KSZ8893MQL-AM)
- On-chip forwarding resources (對比KS8893MQLI)
設計說明
Use the official Microchip KSZ8893MQL/MBL datasheet as the authority for the 128-PQFP land pattern, differential Ethernet routing, media interfaces, and power decoupling. Keep the two copper media channels and the 100BASE-FX channel within the layout constraints specified by the manufacturer, maintain continuous return paths beneath high-speed pairs, and avoid placing noisy digital or switching circuitry adjacent to PHY signals. Because the verified excerpts do not include exact trace lengths or component values, those values should not be inferred from generic Ethernet-layout rules.
Plan the 3.3 V rail around the switch's peak PHY and digital activity rather than average load. Place local high-frequency bypass capacitors at the supply and ground pins, provide a low-impedance distribution path for the switching engine, and separate analog, digital, and I/O supply domains according to the manufacturer schematic. No datasheet capacitor values, current limits, or timing requirements were included in the verified excerpts, so the final network and capacitor selection must be checked against the official datasheet and worst-case link activity.
Do not treat KSZ8893MQL-AM, KSZ8893MQL-AM-TR, and standard KSZ8893MQL as interchangeable without checking the ordering table, temperature grade, qualification, and production requirements. Also do not substitute KSZ8993F-A1 solely because it is another KSZ switch family; the available comparison data identifies voltage, power, and package-size differences rather than pin compatibility. Before procurement, confirm the exact 128-PQFP suffix, current lead time, and authorized-distributor inventory because the verified price and stock indication were point-in-time observations.
合規資訊
The verified LCSC listing explicitly states that the KSZ8893MQL/MBL comes in a lead-free package and identifies a separate automotive-grade KSZ8893MQL-AM configuration. The standard KSZ8893MQL is therefore recorded as not applicable for AEC-Q100. Detailed RoHS, REACH, halogen-free, and conflict-minerals evidence was not included in the supplied verified excerpts.
