W5100 - 10/100 Ethernet Controller with TCP/IP | WIZnet
N.º de pieza: W5100 ✗ Fin de vida| Cant. | Precio unitario | Total |
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W5100 Descripción general
An Ethernet controller is an interface IC that connects an embedded processor to a physical network. In the W5100, the MAC, TCP/IP hardware, and 10/100 PHY are integrated into one device, allowing the host MCU or CPU to communicate through SPI while the controller handles Ethernet framing and protocol processing.
The verified distributor listing identifies W5100 as a 10/100 Base-T/TX Ethernet controller with an SPI interface and an 80-LQFP package. The manufacturer datasheet describes the device as a full-featured, single-chip Internet-enabled controller designed for embedded applications where integration stability, performance, area, and system cost control are important.
W5100 is suited to industrial embedded equipment, control systems, instrumentation, building automation, and other Ethernet-connected products. Its integrated architecture can simplify hardware design by combining the Ethernet MAC and PHY with hardware-assisted TCP/IP functions, while the SPI host interface keeps the external processor interface compact.
The 10/100 Ethernet capability makes W5100 appropriate for legacy and cost-sensitive networks operating at 10 or 100 Mbit/s. The exact PHY, electrical, timing, temperature, memory, and SPI operating details should be confirmed directly in the manufacturer datasheet before final schematic, layout, and qualification decisions.
The W5100 is not a power semiconductor, so a safe operating area is not applicable. Proper implementation requires attention to Ethernet magnetics, RJ45 integration, PCB signal integrity, power sequencing, decoupling, and the exact pin assignments shown in the official documentation. This page consolidates the verified product description, distributor package information, datasheet links, and engineering-oriented application guidance.
Alternativas directas para W5100 — 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 W5100 (mismo factor de forma y huella) — difiere en Ethernet Standard, Host Interface, Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
No hay alternativas directas disponibles para este producto.
Solicitar alternativasW5100 Especificaciones
| Product Type | Single-chip Internet-enabled 10/100 Ethernet controller |
| Ethernet Standard | 10/100 Base-T/TX Ethernet |
| Velocidad de datos | 10 Mbit/s to 100 Mbit/s |
| Integrated Functions | TCP/IP, Ethernet MAC, and 10/100 PHY |
| Host Interface | SPI |
| Encapsulado | 80-LQFP, 10 x 10 mm |
| Manufacturer | WIZnet Co., Ltd. |
| Application Category | Embedded Ethernet systems |
| Network Connectivity | 10/100 Ethernet |
| Controller Architecture | Hardwired TCP/IP controller |
Guía de configuración de pines de W5100 80-lqfp, 10 x 10 mm
Configuración de pines para W5100 (encapsulado 80-lqfp, 10 x 10 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 W5100.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
W5100 es adecuado para 6 aplicacións: Industrial Ethernet Control, Building Automation Equipment, Embedded Instrumentation, Networked Sensors and IoT Gateways, Ethernet-Enabled Consumer Devices, Data Acquisition and Remote Monitoring.
Industrial Ethernet Control
W5100 fits embedded industrial controllers that need to connect a local MCU or CPU to a 10/100 Ethernet network. Its integrated TCP/IP, MAC, and PHY functions reduce the network-processing burden on the host processor, while the SPI interface provides a straightforward connection to a microcontroller bus. A system implementation still requires correct power, clock, decoupling, reset, and Ethernet-magnetics design. The controller is especially useful where integration and board area matter, because the verified product description emphasizes stability, performance, area control, and system cost control.
Recomendado
Building Automation Equipment
W5100 can provide wired Ethernet connectivity for building-automation controllers, room controllers, gateways, and monitoring equipment. A 10/100 Ethernet connection allows embedded equipment to exchange control and status data over an established network without requiring a separate external Ethernet interface. The SPI host connection is useful for small controllers with limited I/O, while the integrated TCP/IP and PHY functions support a more compact implementation. Product developers should verify network timing, cable and magnetics requirements, and firmware behavior against the official WIZnet documentation.
Recomendado
Embedded Instrumentation
W5100 is appropriate for networked measurement instruments that need to report data through 10/100 Ethernet. The integrated Ethernet controller can offload TCP/IP-related processing from the embedded processor, allowing the instrument to focus on measurement, control, and data storage. The SPI interface supports connection to a host microcontroller, and the 80-LQFP package provides a defined surface-mount implementation for compact instruments. Designers should confirm timing, electrical limits, isolation requirements, and enclosure-related thermal conditions using the manufacturer datasheet.
Recomendado
Networked Sensors and IoT Gateways
W5100 can serve as the Ethernet side of a compact sensor gateway or IoT bridge. A microcontroller can collect sensor data locally and use the W5100 SPI interface to place that data onto a 10/100 network through hardware-assisted TCP/IP functionality. The dual-rate Ethernet support is useful where endpoint networks may operate at 10 or 100 Mbit/s. For deployment, validate network stack support, connection handling, buffer behavior, reset sequencing, and the complete Ethernet physical-layer implementation before production release.
Recomendado
Ethernet-Enabled Consumer Devices
W5100 can add wired Ethernet connectivity to embedded consumer devices where a wired network interface is preferred over Wi-Fi. Its single-chip architecture combines the protocol, MAC, and PHY functions, and the SPI interface allows connection to a cost-conscious embedded controller. This can be useful for appliances, media devices, access equipment, and controllers that need network firmware support rather than only a physical Ethernet PHY. Designers must account for the external RJ45 and magnetics implementation, EMC requirements, and the availability of suitable host drivers.
Recomendado
Data Acquisition and Remote Monitoring
W5100 is suitable for remote monitoring and data-acquisition equipment that must transfer measurements to a LAN-based host. By integrating the 10/100 Ethernet MAC and PHY, it can reduce the amount of Ethernet hardware and firmware required in the embedded design. The host processor communicates through SPI and can use WIZnet's documented controller interface to manage network traffic. The final design should verify buffer requirements, interrupt behavior, packet handling, and system recovery mechanisms under sustained network activity.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para W5100 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Diferenciadores clave
- Integrated single-chip Ethernet architecture (frente a Separate Ethernet MAC and PHY implementations)
- SPI host connectivity (frente a Ethernet controllers requiring MII or parallel host interfaces)
- Defined embedded package (frente a Controllers using different package footprints)
Notas de diseño
Use the WIZnet datasheet as the controlling source for the 80-LQFP, 10 x 10 mm land pattern and pin assignments. Keep the Ethernet differential traces short, controlled-impedance, and isolated from noisy switching nodes. Confirm the required trace spacing, via structure, reference plane, and magnetics layout from the manufacturer application guidance; those values are not included in the supplied verified snippets.
Do not finalize the power tree without checking the W5100 supply-voltage range, current consumption, sequencing, and decoupling recommendations in the official datasheet. Place required bulk and local decoupling close to the relevant pins and keep the Ethernet PHY supply return path compact. The supplied data does not provide voltage or current limits, so they remain [DATA_NEEDED] rather than being estimated.
The SPI host interface must be routed according to the controller's timing and signal-integrity requirements, with attention to clock edge behavior, trace length, grounding, and potential return-current paths. Because the verified snippets do not include SPI maximum frequency or timing tables, do not select a bus speed based on assumptions. Validate the final firmware and timing against the manufacturer specifications.
A similar Ethernet speed does not prove replacement compatibility. W5100 combines TCP/IP, MAC, PHY, SPI, and an 80-LQFP package, so a substitute must be checked for exact pin compatibility, supply requirements, protocol behavior, firmware support, memory access, and Ethernet-magnetics requirements. The supplied cross-reference search returned no validated electronic substitute for W5100.
Información de cumplimiento
Compliance information was not present in the supplied verified snippets and must be confirmed from WIZnet product documentation or an authorized distributor.
