KSZ8895MQI - 5-Port 10/100 Ethernet Switch | Microchip
N.º da peça: KSZ8895MQI ✓ AtivoKSZ8895MQI Visão geral
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.
Alternativas drop-in para KSZ8895MQI — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com KSZ8895MQI (mesmo formato e footprint) — diferindo em Product Type, Package, Host Interface, Number of Ports, Supply Voltage.
KSZ8895MQXI
✅ Drop-InConsulte o preço
Ver ficha técnica →KSZ8895RQX
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
KSZ8895FQX
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
KSZ8895ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
KSZ8895MLUB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
KSZ8895MQI Classificações máximas e características elétricas
| 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 |
| Tensão de alimentação | 1.14 V and 1.26 V |
| Encapsulamento | 128-pin PQFP (14 x 20 mm) |
| Contagem de pinos | 128 pins |
| Tipo de montagem | Surface mount |
| Product Grade | Industrial grade |
| Switching Architecture | Layer 2 managed switch |
| Fiber Support | Supported in the KSZ8895 family |
| Manufacturer | Microchip Technology |
Guia de Configuração de Pinos do KSZ8895MQI 128-pin pqfp (14 x 20 mm)
Configuração de pinos para KSZ8895MQI (pacote 128-pin pqfp (14 x 20 mm)). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para KSZ8895MQI.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
KSZ8895MQI é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para KSZ8895MQI — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Five-port integration in one interface IC (vs KSZ8863)
- Fast Ethernet rather than Gigabit Ethernet (vs KSZ9477)
- Documented pin-compatible migration family (vs KSZ8895MQX)
- Industrial-grade MQI ordering configuration (vs KSZ8895RQX)
Notas de projeto
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.
Informações de conformidade
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.
