The W5500 Ethernet network module provides a hardware TCP/IP engine designed for embedded systems. It is built to work with 51 (8051) family microcontrollers and STM32 microcontrollers, enabling reliable Ethernet connectivity while offloading the heavy lifting from the host MCU. The module supports development workflows compatible with the W5100 ecosystem, making it straightforward to integrate into existing projects that previously used W5100. Key benefits Hardware TCP/IP stack offloads networking work from the MCU, improving overall performance and responsiveness. 10/100 Mbps Ethernet support delivers reliable network connectivity for embedded devices. SPI interface offers a straightforward and common connection method to 51/8051 and STM32 microcontrollers. Compatibility with W5100based development workflows helps ease migration and reuse of existing software libraries and examples. Designed for embedded applications that require robust, lowlatency network communication. Key attributes Functionality: Ethernet connectivity with a hardware TCP/IP engine, enabling standard network communications for embedded projects. Compatibility: Suitable for 51 (8051) and STM32 microcontrollers; designed to be programmed through workflows aligned with the W5100 ecosystem. Performance: Hardwareaccelerated TCP/IP processing paired with 10/100 Mbps Ethernet capability to support reliable data transfer. Interface: SPI host interface to the MCU for simple integration into common microcontroller designs. Form factor and materials: Moduleoriented design intended for embedded use; specific dimensions and materials vary by implementation (refer to the product datasheet for exact details). Use cases and applications IoT sensing with STM32: Connect a sensor array to a STM32 MCU and transmit data to a central server or cloud endpoint over Ethernet with reduced CPU overhead. Industrial control with 8051based systems: Enable reliable TCP/UDP communications for remote monitoring and control of equipment in an industrial environment. Remote data logging: Collect and send logs from a compact embedded device to a network server or NAS, supporting local processing while maintaining network resiliency. What you get A W5500based Ethernet network module ready to interface with 51 (8051) and STM32 microcontrollers. Compatibility with W5100 programming workflows to facilitate development and migration. A compact, embeddedfriendly Ethernet solution that reduces host CPU load while delivering dependable network performance.