STM32WLE5CBU6

RF Transceiver ICS Overview

The STM32WLE5CBU6 is a Sub-GHz wireless microcontroller featuring an Arm Cortex-M4 core operating at up to 48 MHz. It integrates 128 KB of Flash memory and 64 KB of SRAM within a 48-pin UFQFPN package. The device supports LoRa, LoRaWAN 1.0, and Sigfox protocols across the 150 MHz to 960 MHz frequency range. Key specifications include a 12-bit ADC, 1.8 V to 3.6 V supply voltage, and operation temperatures from -40 °C to +105 °C.

RF Transceiver ICS Feature Summary

• Integrates a high-performance Arm Cortex-M4 RISC kernel with DSP instructions and Memory Protection Unit for secure processing.
• Combines ultra-low-power Sub-GHz radio supporting LoRa, (G)FSK, (G)MSK, and BPSK modulation schemes.
• Includes comprehensive analog peripherals such as a 12-bit ADC, 12-bit DAC, low-power comparators, and reference voltage generator.
• Features multiple communication interfaces including USART, LPUART, I2C, SPI, and DMA controllers for flexible system integration.

RF Transceiver ICS Applications

• Long Range Wide Area Network (LPWAN) sensor nodes
• Smart metering and utility infrastructure monitoring
• Industrial IoT telemetry and remote control systems

RF Transceiver ICS Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to assembly. Ensure ordering suffixes match required packaging and temperature grades. Request official datasheet DM00530369 and errata sheet DM00660735 for latest technical revisions before finalizing design implementation.

RF Transceiver ICS Selection Notes

Select this model when specific support for LoRa modulation and Sigfox compatibility is required alongside standard Sub-GHz capabilities. The 128 KB Flash configuration suits applications needing substantial code storage compared to lower-tier variants. Verify that the 48 MHz clock speed meets real-time processing requirements for the intended embedded workload.

RF Transceiver ICS Part Context

This part belongs to the STM32WL series, designed for ultra-low-power wireless applications. It combines ARM Cortex-M4 processing with a dedicated Cortex-M0+ coprocessor for radio management. The device targets LPWAN standards, offering integrated security features like AES-256 encryption and hardware-based protection mechanisms for firmware integrity.

RF Transceiver ICS Replacement Considerations

STM32WLE5C8U6: Offers identical RF and core features but with reduced 64 KB Flash memory capacity.

RF Transceiver ICS FAQ

Does the STM32WLE5CBU6 support both LoRa and Sigfox protocols?

Yes, the device natively supports LoRa, LoRaWAN 1.0, and Sigfox modulation schemes within its Sub-GHz radio block.

What is the maximum output power of the radio transceiver?

The integrated radio transceiver provides a maximum output power of 22 dBm.