STM32WLE5CBU6TR

RF Transceiver ICS Overview

The STM32WLE5CBU6TR is a Sub-GHz wireless microcontroller from STMicroelectronics, integrating an Arm Cortex-M4 core with a LoRa radio transceiver. It operates within the 150 MHz to 960 MHz frequency range and supports protocols including LoRaWAN 1.0, Sigfox, and Wireless M-Bus. The device features 128 kB of Flash memory and 64 kB of SRAM, housed in a 48-UFQFPN package with exposed pad. It delivers a maximum output power of 22 dBm and a sensitivity of -148 dBm. Supply voltage ranges from 1.8 V to 3.6 V, with an operating temperature span of -40°C to 105°C.

RF Transceiver ICS Feature Summary

• Integrates a high-performance Arm Cortex-M4 processor with DSP instructions and Memory Protection Unit for secure application execution.
• Supports multiple LPWAN standards including LoRaWAN, Sigfox, and Wireless M-Bus within a single chip architecture.
• Provides ultra-low-power operation through efficient SMPS converters and dedicated power domains for analog peripherals.

RF Transceiver ICS Applications

• Smart metering and utility automation networks
• Industrial IoT sensor nodes requiring long-range connectivity
• Wireless M-Bus compliant measurement devices

RF Transceiver ICS Procurement Notes

Verify that the specific suffix 'BU6TR' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the automotive-grade qualification (AEC-Q100) meets the environmental and reliability standards of the target deployment environment. Ensure compatibility with the 48-UFQFPN footprint during PCB layout finalization.

RF Transceiver ICS Selection Notes

Select this component when multi-protocol support for LoRaWAN, Sigfox, and Wireless M-Bus is necessary within a single hardware platform. It is suitable for designs requiring automotive-grade reliability and extended temperature ranges. Consider alternative variants if the application does not require the full 128 kB Flash capacity or specific protocol stacks.

RF Transceiver ICS Part Context

This part belongs to the STM32WL series, designed for low-power wide-area network applications. It combines the processing capabilities of the STM32 MCU family with advanced RF technology. The series targets developers needing flexible connectivity options without compromising on security or power efficiency constraints typical of battery-operated devices.

RF Transceiver ICS Replacement Considerations

STM32WLE5CBU6: Identical electrical specifications but supplied in tray packaging instead of tape and reel. Verify that the change in packaging format aligns with the manufacturing assembly requirements.