STMicroelectronics STM32WLE4CBU6 Wireless MCU, LoRa/FSK, 32-Bit ARM Cortex-M4, UFBGA64

STM32WLE4CBU6 Overview

The STM32WLE4CBU6 is a highly integrated wireless microcontroller designed for long-range, low-power IoT applications. Featuring an Arm Cortex-M4 core running at up to 48 MHz, this device combines advanced processing capabilities with an integrated sub-GHz radio transceiver supporting LoRa, (G)FSK, and (G)MSK modulation schemes. With 192 KB of Flash memory and 64 KB of RAM, it offers ample resources for complex embedded firmware. Its ultra-low power consumption and extensive peripheral set make it ideal for battery-operated devices requiring secure and reliable communication. For detailed manufacturer insights, visit IC Manufacturer.

STM32WLE4CBU6 Technical Specifications

STM32WLE4CBU6 Key Features

• Integrated Arm Cortex-M4 core: Enables efficient embedded processing for complex IoT applications while maintaining low power consumption.
• Sub-GHz radio transceiver: Supports LoRa and various FSK modulations for long-range and robust wireless communication in challenging environments.
• Low power consumption modes: Extends battery life, critical for remote and portable industrial devices that require years of operation without maintenance.
• Flexible memory architecture: Provides 192 KB Flash and 64 KB RAM, allowing for large firmware and advanced application features.
• Advanced security functions: Includes hardware AES-128 encryption and a true random number generator to secure data transmission and device authentication.
• Wide operating voltage range: Ensures compatibility with various power sources and system designs.
• Compact 32-pin package: Optimizes PCB space, ideal for compact industrial sensor nodes and gateways.

Typical Applications

• Long-range IoT sensor networks requiring low power and secure wireless communication, such as environmental monitoring and smart agriculture.
• Smart metering systems that need reliable data transmission over large distances with minimal power consumption.
• Industrial automation devices where robust sub-GHz connectivity and embedded processing enhance operational efficiency.
• Asset tracking solutions that benefit from integrated LoRa radio and low standby current for extended battery life.

STM32WLE4CBU6 Advantages vs Typical Alternatives

This microcontroller offers a unique combination of an Arm Cortex-M4 core with an integrated sub-GHz radio supporting LoRa and other modulation schemes. Its low power consumption, high memory capacity, and built-in security features provide significant advantages over typical discrete microcontroller and radio module solutions. The integration reduces overall system complexity and cost while improving reliability and enabling long-range communication in industrial IoT environments.

STM32WLE4CBU6 Brand Info

The STM32WLE4CBU6 is part of the STM32 family developed by STMicroelectronics, a global leader in semiconductor solutions. Known for innovation and quality, STMicroelectronics combines microcontroller technology with radio communication in this product to meet the growing demands of IoT and industrial applications. The STM32WLE series integrates proven STM32 MCU architectures with LoRa technology, enhancing connectivity and system integration, backed by extensive development tools and ecosystem support from STMicroelectronics.

FAQ

What frequency bands does this device support for wireless communication?

The device supports sub-GHz frequency bands ranging from 150 MHz to 960 MHz. This wide