KSZ8895FQXC - 5-Port Managed Ethernet Switch | Microchip
N.º de pieza: KSZ8895FQXC ✓ ActivoKSZ8895FQXC Descripción general
An Ethernet switch is a Layer 2 network semiconductor that forwards Ethernet frames between connected ports according to MAC addresses. The KSZ8895FQXC integrates five 10/100 Ethernet ports with a configurable managed-switch architecture, allowing multiple embedded devices or computers to share a local Ethernet segment. MII and RMII interfaces connect the switch to a host controller or system-on-chip, while the integrated PHYs simplify implementation of copper Ethernet connections.
The KSZ8895 family provides managed Layer 2 switching, programmable LED indication, cable diagnostics, optical-fiber support, and a low-power mode, as identified in the Microchip product description and distributor feature listing. These capabilities make the device suitable for automotive Ethernet networks, industrial Ethernet equipment, embedded gateways, and compact network appliances. A managed switch also provides better visibility into port operation and link diagnostics than a basic unmanaged switch.
The FQXC ordering designation identifies the device variant offered in a 128-pin PQFP. The package provides 128 electrical positions and is substantially larger than a typical QFN network switch, making the KSZ8895FQXC especially appropriate for designs that prioritize a high pin count and legacy-style leaded-package assembly rather than minimal PCB area. Product-family variants use related package and temperature-grade options, but compatibility must be checked against the exact ordering code.
Typical applications include automotive infotainment and vehicle Ethernet gateways, industrial controllers with multiple 10/100 ports, embedded Ethernet concentrators, and low-power network appliances. The switch can connect several physical network segments to one host processor while providing programmable port-status indication and cable diagnostics. Designers should reserve suitable Ethernet magnetics and compliant connector structures for each copper port and ensure the host interface timing is correctly configured.
A key design consideration is thermal and layout planning for a 128-pin device. Place the controller and memory components needed by the selected platform arrangement according to the manufacturer reference design, keep high-speed host traces short, and provide continuous ground-plane connectivity. Validate magnetics, impedance-controlled traces, isolation requirements, and automotive EMC constraints before releasing the PCB.
This product page combines the exact KSZ8895FQXC ordering information with same-package family alternatives, interface and package comparisons, application guidance, and practical PCB considerations. It also distinguishes confirmed drop-in candidates from options that require engineering review, helping buyers identify where a direct replacement is appropriate and where a redesign is necessary.
Alternativas directas para KSZ8895FQXC — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con KSZ8895FQXC (mismo factor de forma y huella) — difiere en Package, Automotive Qualification, Ethernet Speed, Number of Ports, Product Type.
KSZ8895RQXI
✅ Sustitución directaConsulte el precio
Ver hoja de datos →KSZ8995MAI
✅ Sustitución directaConsulte el precio
Ver hoja de datos →KSZ8895FQXC Valores máximos y características eléctricas
| Device Type | Layer 2 managed Ethernet switch |
| Number of Ports | 5 ports |
| Ethernet Speed | 10/100 Mbps per port |
| Physical Layer | 10/100 Base-T/TX PHY |
| Host Interface | MII and RMII |
| Network Layer | Layer 2 |
| Encapsulado | 128-pin PQFP (14 x 20 mm) |
| Recuento de pines | 128 pins |
| Tipo de montaje | Surface mount |
| Automotive Qualification | Automotive-qualified KSZ8895 family |
| LED Indication | Programmable |
| Cable Diagnostics | Supported |
| Optical Fiber Support | Supported |
| Power Management Feature | Low-power mode |
Guía de configuración de pines de KSZ8895FQXC 128-pin pqfp (14 x 20 mm)
Configuración de pines para KSZ8895FQXC (encapsulado 128-pin pqfp (14 x 20 mm)). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para KSZ8895FQXC.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
KSZ8895FQXC es adecuado para 6 aplicacións: Automotive Ethernet Gateway, Industrial Ethernet Concentrator, Embedded Network Appliance, In-Vehicle Infotainment Network, Cable Diagnostics and Link Management, Low-Power Network Edge Device.
Automotive Ethernet Gateway
The KSZ8895FQXC fits an automotive Ethernet gateway that consolidates several 10/100 network links into a host processor through MII or RMII. Its five integrated PHYs reduce the number of separate copper-network interface devices, while Layer 2 management, programmable LED indication, and cable diagnostics support service and status functions. The device belongs to an automotive-qualified KSZ8895 family, making it a logical starting point for vehicle-network designs, subject to confirmation of the exact FQXC temperature grade. Designers should use the manufacturer reference layout and validate EMC, magnetics, isolation, and automotive network timing.
Recomendado
Industrial Ethernet Concentrator
The KSZ8895FQXC is appropriate for an industrial Ethernet concentrator that connects multiple sensors, controllers, or service ports to an embedded host. Five 10/100 Base-T/TX ports provide a compact Layer 2 network without requiring one external PHY per copper link, and the MII/RMII interface connects the switching fabric to a processor. Programmable port LEDs and cable diagnostics help commissioning and fault isolation, while the low-power mode can support energy-conscious installations. The 128-pin PQFP requires careful routing and a larger land pattern than a compact QFN switch, so board-area trade-offs should be evaluated before layout begins.
Recomendado
Embedded Network Appliance
The KSZ8895FQXC can serve as the central Ethernet switch in an embedded gateway, control terminal, or network appliance with several wired endpoints. A host processor connected through RMII or MII manages traffic across the five 10/100 ports, eliminating several discrete Ethernet interface components and reducing board complexity. Managed Layer 2 operation adds operational visibility compared with an unmanaged switch, and programmable LEDs allow board designers to map link, activity, or fault conditions to physical indicators. Confirm the selected clock source and interface timing against the manufacturer reference design, and preserve continuous ground-plane return beneath the high-speed clock and data routes.
Recomendado
In-Vehicle Infotainment Network
The KSZ8895FQXC is suited to infotainment and vehicle connectivity platforms that need several 10/100 Ethernet endpoints linked to a host or gateway processor. Its integrated Layer 2 switch reduces the number of network PHY packages, and MII/RMII connectivity permits integration with a compatible system-on-chip. Cable diagnostics can support link troubleshooting, while programmable LEDs can report network status to the vehicle HMI. Because the KSZ8895 family is automotive qualified, engineers can evaluate it for vehicle networking, but the exact FQXC ordering suffix, temperature range, EMC requirements, and automotive qualification criteria must be confirmed before production release.
Recomendado
Cable Diagnostics and Link Management
The KSZ8895FQXC can be used in equipment where physical-link status must be visible to a host or operator. Its cable-diagnostics feature complements the managed five-port architecture, while programmable LED indication can provide compact port-level feedback without requiring every status to be decoded solely by software. This makes the device useful in test fixtures, communication panels, and industrial gateways where a failed or intermittent copper link needs quick identification. The software control sequence and diagnostic coverage must follow the manufacturer register definitions, and the PCB should provide accessible test points for validating cable behavior during production.
Recomendado
Low-Power Network Edge Device
The KSZ8895FQXC can support a low-power network edge device that needs several wired endpoints but must reduce activity when traffic is light. Its low-power mode complements the integrated PHYs and managed switch architecture, while the host processor can retain control through MII or RMII. The five-port arrangement is useful for equipment combining data acquisition, service access, and external communications over one Ethernet device. Power-state behavior should be tested with the attached PHYs and system load because entering or leaving a low-power condition can affect link timing and application traffic. Follow the manufacturer power-sequencing and clocking recommendations for deterministic startup.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para KSZ8895FQXC — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | KSZ8895RQXI | KSZ8995M |
|---|---|---|---|
| Package | PQFP-128 (14 x 20 mm) | PQFP-128 (20 x 14 mm) | PQFP-128 (20 x 14 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Device Type | Layer 2 managed Ethernet switch | Managed Ethernet switch | Managed Ethernet switch |
| Pin Count | 128 pins | 128 pins | 128 pins |
Diferenciadores clave
- Five integrated managed Ethernet ports (frente a KSZ8995M)
- Automotive-family positioning (frente a KSZ8995M)
- Host-interface flexibility (frente a KSZ8995M)
Notas de diseño
Use the manufacturer 128-pin PQFP land pattern and verify courtyard, drill, solder-mask, and paste geometry against the final PCB fabrication rules. The package occupies a 14 x 20 mm body area, so place the Ethernet magnetics and connectors around the perimeter while maintaining uninterrupted ground-plane continuity. Pin-1 orientation must be checked against both the PCB assembly drawing and the device marking before placement.
Route MII or RMII clock and data signals as a controlled group using the manufacturer reference layout. Keep the RMII or MII interface traces short, avoid unnecessary test pads, and provide a continuous reference plane. Ethernet copper routing must follow the impedance and isolation requirements of the selected magnetics and connector implementation; do not treat switch-edge routing as ordinary low-speed digital routing.
Do not substitute a family variant solely because it also uses a 128-pin PQFP. Compare the exact ordering suffix, temperature grade, automotive qualification, exposed functions, and numbered pinout. The KSZ8895RQXI is the closest documented same-family candidate, while KSZ8995M requires additional review of port count, voltage range, power behavior, and pin compatibility before it can be treated as a drop-in device.
Apply the manufacturer’s recommended supply sequencing and decoupling arrangement. Place required input and bulk capacitors close to their associated power pins, provide a low-impedance ground return, and avoid sharing narrow return paths between switch, PHY, and host-interface circuits. Confirm the exact core and I/O voltage requirements in the datasheet before selecting regulators or planning power-state transitions.
Información de cumplimiento
Microchip identifies the KSZ8895 family as automotive qualified. Exact RoHS, REACH, lead-free, halogen-free, and conflict-minerals status for the KSZ8895FQXC ordering code should be confirmed from the manufacturer product documentation.
