ATWINC3400

The ATWINC3400 is a highly integrated Wi-Fi and Bluetooth 5.2 combo module from Microchip Technology, designed for low-power, high-performance wireless connectivity in IoT and embedded applications. It features an ARM Cortex-M4 processor running at up to 160 MHz, providing efficient handling of both Wi-Fi and Bluetooth protocols simultaneously. The module supports IEEE 802.11 b/g/n standards with 2.4 GHz operation, offering data rates up to 150 Mbps and robust performance in crowded RF environments. Key features include built-in security engines for WPA3, AES-128/256 encryption, and secure boot, ensuring end-to-end data protection. It also integrates a hardware-based random number generator and cryptographic accelerator, enabling fast and secure key exchange and authentication processes. The ATWINC3400 supports Bluetooth Low Energy (BLE) 5.2, including features like LE Coded PHY, extended advertising, and multiple connection capabilities, making it ideal for sensor networks and wearable devices. Designed for ease of integration, the module includes an on-chip antenna, eliminating the need for external RF components and reducing board space. It operates over a wide voltage range (1.7V to 3.6V), suitable for battery-powered systems, and offers ultra-low power consumption—down to 2 µA in deep sleep mode—making it well-suited for energy-constrained applications. The module provides a comprehensive software stack, including TCP/IP, HTTP, MQTT, and BLE GATT services, accelerating development time and simplifying firmware design. Common applications span smart home devices, industrial sensors, medical equipment, asset tracking systems, and consumer electronics where reliable, secure, and low-latency wireless communication is essential. Its modular form factor and minimal external component requirements allow for rapid prototyping and scalable production. The ATWINC3400 is supported by Microchip’s MPLAB X IDE and Atmel START software tools, enabling developers to configure and optimize wireless functionality efficiently.