Quectel FCM740D Embedded MCU Module | 120MHz Core, Wi-Fi 4 & BLE 5.2

The Quectel FCM740D is an embedded MCU module that combines a capable processor, Wi-Fi 4, and Bluetooth Low Energy 5.2 into one compact wireless solution. Designed for small, cost-sensitive, and power-conscious IoT products, it allows developers to implement local control, network connectivity, and app-based interaction without relying on multiple discrete components.

At its core, the module integrates a high-performance MCU that can handle application logic, protocol processing, and peripheral management directly. This makes it especially suitable for devices that need more than basic connectivity but do not require a full application processor. With built-in memory and a streamlined software stack, the FCM740D supports efficient development through standard AT commands and the QuecOpen solution, giving teams flexibility in how they implement device behavior.

• Wi-Fi 4 module with single-band (2.4GHz) Wi-Fi and 1*1 antenna
• PCB antenna or first RF coaxial connector
• BLE 5.2 with Wi-Fi pairing via Bluetooth
• High-capacity memory: 256KB SRAM and 4MB flash
• Wide operating temperature range: -40°C to +105°C
• High stability, high reliability, and full compatibility

Wi-Fi 4 support enables stable connection to local wireless networks, while BLE 5.2 adds convenient short-range interaction for provisioning, mobile app control, and nearby device pairing. The module also supports multiple low-power modes and keep-alive mechanisms, helping battery-powered or always-on devices maintain reliable operation without excessive energy consumption.

The FCM740D comes in an LCC + DIP package, measuring only 20.3mm * 15.8mm * 2.7mm, optimizing the size and cost of the end product while remaining compatible with a variety of designs. Its LCC + DIP packaging supports both surface-mount and wave-soldering processes, making it easier to integrate into diverse production workflows.

The compact footprint is particularly well suited for space-limited products such as smart lighting, smart sockets, sensors, small appliances, consumer electronics, and lightweight industrial nodes. A wide operating temperature range further enhances its suitability for environments where thermal stability matters.

• Smart home devices
• Industrial IoT
• Consumer electronics
• Small, high-temperature IoT devices such as bulbs, lamp straps, and smart sockets
• Sensors and lightweight industrial nodes