KSZ8895MQI - 5-Port 10/100 Ethernet Switch | Microchip
MPN: KSZ8895MQI ✓ Hoạt độngKSZ8895MQI Tóm tắt
An Ethernet switch is a Layer 2 network device that connects multiple endpoints through dedicated internal switching paths and forwards Ethernet frames using hardware-assisted address processing. Within the broader product hierarchy, the KSZ8895MQI is an Ethernet interface controller, an interface IC, and a semiconductor designed for embedded networking systems. Its five-port architecture allows a single device to connect multiple 10/100 endpoints while reducing the number of discrete network components required by a product.
The main engineering features include five integrated 10/100 Ethernet switch ports, Layer 2 managed-switch operation, an MII interface for connection to a host processor, and support for 100 Mbps data rates. The verified operating-voltage information identifies 1.14 V and 1.26 V supply levels. The 128-PQFP package provides a high pin count for the integrated switching, media, and management interfaces, while its 14 x 20 mm body is substantially larger than the compact packages commonly used for single-port Ethernet PHYs.
The KSZ8895 family is designed to reduce total system cost by consolidating multiple Ethernet switching functions into one integrated circuit. Its MII interface permits connection with compatible processor or controller hardware, avoiding the need for a separate physical-layer arrangement solely for switched connectivity. The managed Layer 2 feature set distinguishes the device from basic unmanaged switches and supports integration into embedded equipment requiring controlled Ethernet forwarding behavior.
Typical applications include industrial Ethernet controllers, automotive or transportation networking equipment, embedded routers, factory automation gateways, and network interface modules. The five-port arrangement is especially useful where several wired endpoints must share a central switching function while an external processor accesses the switch through MII. These uses align with the part's industrial-grade designation and the KSZ8895 family's system-cost reduction objectives.
A key design consideration is package and interface verification. The KSZ8895MQI uses a 128-pin PQFP footprint, so a replacement must match both the physical package and relevant pin functions; functional similarity alone is insufficient. Power, clock, media-interface, and management signals must be checked against the manufacturer documentation before layout release or schematic substitution.
This page consolidates verified manufacturer and distributor information, documented migration alternatives, application guidance, comparison parameters, and PCB-focused selection notes. It also distinguishes exact switch characteristics from data requiring verification, helping engineers make a defensible sourcing and design decision without treating electrically similar but non-pin-compatible parts as drop-in replacements.
Bộ thay thế dễ dàng lắp đặt cho KSZ8895MQI — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với KSZ8895MQI (cùng hình factor và footprint) — khác nhau ở Product Type, Package, Host Interface, Number of Ports, Supply Voltage.
KSZ8895MQXI
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →KSZ8895RQX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
KSZ8895FQX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
KSZ8895ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
KSZ8895MLUB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
KSZ8895MQI Tỷ lệ tối đa & tính chất điện
| Product Type | Layer 2 managed Ethernet switch |
| Number of Ports | 5 ports |
| Ethernet Data Rate | 10/100 Mbps |
| Maximum Data Rate | 100 Mbps |
| Processor Interface | 1 x MII interface |
| Ethernet Standard | IEEE 802.3 and IEEE 802.3u |
| Điện áp cung cấp | 1.14 V and 1.26 V |
| Hộp | 128-pin PQFP (14 x 20 mm) |
| Số chân | 128 pins |
| Kiểu lắp đặt | Surface mount |
| Product Grade | Industrial grade |
| Switching Architecture | Layer 2 managed switch |
| Fiber Support | Supported in the KSZ8895 family |
| Manufacturer | Microchip Technology |
Hướng dẫn cấu hình chân KSZ8895MQI 128-pin pqfp (14 x 20 mm)
Cấu hình chân cho KSZ8895MQI (128-pin pqfp (14 x 20 mm) gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho KSZ8895MQI.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
KSZ8895MQI phù hợp cho 6 Áp dụngs: Industrial Ethernet Gateway, Factory Automation Controller, Embedded Network Appliance, Transportation Network Interface, Test and Measurement Front End, Building Access Network Node.
Industrial Ethernet Gateway
The KSZ8895MQI fits an industrial Ethernet gateway that must consolidate multiple wired endpoints into one switching subsystem. Its five 10/100 ports can connect machines, sensors, service equipment, or service interfaces while the MII interface provides a hardware path to a host processor. Using a managed Layer 2 switch instead of five isolated physical-layer blocks simplifies board partitioning and network administration. The industrial-grade ordering designation supports the intended environment, although the exact operating-temperature limits should be confirmed before deployment. Layout planning should also reserve the 14 x 20 mm footprint and verify power, clock, and management connections against the manufacturer pin table.
Được đề xuất
Factory Automation Controller
The KSZ8895MQI is suitable for a factory automation controller that connects programmable equipment, remote I/O, and supervisory electronics over 10/100 Ethernet. Five integrated ports reduce the number of discrete network interface components, while Layer 2 management supports controlled frame forwarding in an embedded design. The MII interface allows a compatible controller to configure or monitor the switch rather than relying only on autonomous forwarding. For deployment near motors and machinery, engineers should check conducted and radiated emissions, isolation, surge requirements, and thermal margins because those environmental details are not specified in the supplied verified data.
Được đề xuất
Embedded Network Appliance
The KSZ8895MQI can serve an embedded router, gateway, or service node requiring several 10/100 connections without deploying multiple single-port Ethernet devices. The five-port architecture provides a compact switching fabric for local devices, while the MII interface connects the switch to a host processor capable of implementing routing, filtering, or management functions. The device's verified support for IEEE 802.3 and IEEE 802.3u makes it appropriate for legacy Fast Ethernet infrastructure. Designers should budget careful routing for the 128-pin PQFP package and validate the full power-supply requirements before schematic approval.
Được đề xuất
Transportation Network Interface
The KSZ8895 family's highly integrated managed-switch architecture is relevant to transportation and automotive networking equipment, where several Ethernet nodes may need to share a central communications path. The KSZ8895MQI itself is identified as industrial grade, while Microchip describes the broader family as automotive qualified, so engineers must confirm the exact suffix qualification before using it in an automotive program. Five 10/100 ports and the MII interface support embedded network architecture, but final use also requires operating-temperature, EMC, fault-tolerance, and functional-safety verification beyond the supplied data.
Được đề xuất
Test and Measurement Front End
The KSZ8895MQI can support test and measurement front ends that must collect Ethernet data from several instruments or DUTs. The five switched 10/100 ports allow individual test channels to share a host connection through the MII interface, reducing the number of network interfaces required by the controller. Managed Layer 2 behavior can help organize traffic and assist repeatable data acquisition. For high-accuracy or safety-related measurement systems, engineers should verify grounding, isolation, clocking, conducted-noise behavior, and calibration requirements using the manufacturer documentation rather than assuming that Ethernet compliance alone covers instrument-level accuracy.
Được đề xuất
Building Access Network Node
The KSZ8895MQI fits an access-control or building-network node that connects door controllers, cameras, sensors, and service interfaces over 10/100 Ethernet. Five ports allow several field devices to share a central embedded controller, while managed Layer 2 operation supports organized frame delivery in a deterministic local network. The MII interface gives the host processor control over switching and diagnostics. Because security devices impose strict requirements for update mechanisms, recovery behavior, and cable fault handling, the design should verify watchdog behavior, firmware interaction, and supported temperature range before production release.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho KSZ8895MQI — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | KSZ8895MQX | KSZ8895RQX | KSZ8895FQX | KSZ8895ML | KSZ8895MLUB |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 128-PQFP (14 x 20 mm) | 128-PQFP (14 x 20 mm) | 128-PQFP (14 x 20 mm) | 128-PQFP (14 x 20 mm) | 128-PQFP (14 x 20 mm) | 128-PQFP (14 x 20 mm) |
| Number of Ports | 5 ports | 5 ports | 5 ports | 5 ports | 5 ports | 5 ports |
| Ethernet Data Rate | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
| Maximum Data Rate | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps | 100 Mbps |
| Switching Layer | Layer 2 managed | Layer 2 managed | Layer 2 managed | Layer 2 managed | Layer 2 managed | Layer 2 managed |
| Ethernet Standards | IEEE 802.3 and IEEE 802.3u | IEEE 802.3 and IEEE 802.3u | IEEE 802.3 and IEEE 802.3u | IEEE 802.3 and IEEE 802.3u | IEEE 802.3 and IEEE 802.3u | IEEE 802.3 and IEEE 802.3u |
| Fiber Support | Supported in the KSZ8895 family | Supported in the KSZ8895 family | Supported in the KSZ8895 family | Supported in the KSZ8895 family | Supported in the KSZ8895 family | Supported in the KSZ8895 family |
Bảo phân biệt quan trọng
- Five-port integration in one interface IC (vsKSZ8863)
- Fast Ethernet rather than Gigabit Ethernet (vsKSZ9477)
- Documented pin-compatible migration family (vsKSZ8895MQX)
- Industrial-grade MQI ordering configuration (vsKSZ8895RQX)
Ghi chú thiết kế
Reserve the complete 128-pin PQFP land pattern on a 14 x 20 mm package footprint and verify it against the latest Microchip package drawing before PCB release. Because no complete verified pin list was supplied, do not infer MII, clock, power, configuration, or media-port connections from generic Ethernet schematics. Check every pin against the exact ordering suffix and the migration table before substituting KSZ8895MQX, RQX, FQX, ML, or MLUB.
The supplied distributor data identifies 1.14 V and 1.26 V operating-voltage information, but it does not state which rails belong to the core, I/O, analog, or mixed-signal sections. Separate and decouple each manufacturer-specified supply as shown in the reference design. Place bulk capacitance near the supply entry points and high-frequency decoupling close to the relevant pins; determine capacitor values and stability requirements from the manufacturer datasheet rather than copying generic Ethernet-switch circuits.
The MII interface can carry high-frequency clock and parallel data signals between the KSZ8895MQI and the host processor. Route MII traces as a controlled-length group, provide uninterrupted reference planes, and isolate clocks from noisy switch and power circuitry. Maintain the differential geometry specified for each 10/100 media interface and keep magnetics, protection devices, and connector return paths away from sensitive clock and data traces.
Do not treat every KSZ8895 suffix as an automatic substitute even though Microchip documents functional drop-in migration relationships among MQ, RQ, FMQ, ML, MLU, MQX, RQX, FQX, ML, and MLUB variants. Compare the complete ordering code, temperature grade, interface mode, package, lifecycle state, and firmware or host-software expectations. Also avoid treating KSZ8863 or KSZ9477 as replacements: the verified sources describe them as different port-count and data-rate families.
Thông tin tuân thủ
Microchip describes the broader KSZ8895 family as automotive qualified, but the supplied results do not establish the exact AEC-Q100 status of the MQI suffix. No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration was provided for this orderable MPN.
