W5100 - 10/100 Ethernet Controller with TCP/IP | WIZnet
料号： W5100 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
W5100 概述
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.
直接替换替代料： W5100 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： W5100 （相同外形与封装尺寸） ——差异在于 Ethernet Standard, Host Interface, Package.
快速对比工具——选择替代料号进行并排对比：
该产品暂无直接替换替代料。
请求替代料W5100 规格参数
| Product Type | Single-chip Internet-enabled 10/100 Ethernet controller |
| Ethernet Standard | 10/100 Base-T/TX Ethernet |
| 数据速率 | 10 Mbit/s to 100 Mbit/s |
| Integrated Functions | TCP/IP, Ethernet MAC, and 10/100 PHY |
| Host Interface | SPI |
| 封装 | 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 |
W5100 80-lqfp, 10 x 10 mm 引脚配置指南
W5100（80-lqfp, 10 x 10 mm 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： W5100.
请参阅 数据手册 以查看完整引脚配置。
典型应用
W5100 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： W5100 ——对比、设计指导和合规信息。
选型指南
关键差异点
- Integrated single-chip Ethernet architecture （对比 Separate Ethernet MAC and PHY implementations)
- SPI host connectivity （对比 Ethernet controllers requiring MII or parallel host interfaces)
- Defined embedded package （对比 Controllers using different package footprints)
设计说明
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.
合规信息
Compliance information was not present in the supplied verified snippets and must be confirmed from WIZnet product documentation or an authorized distributor.
