STM32WLE4CBU6

RF Transceiver ICS Overview

The STM32WLE4CBU6 is a Sub-GHz wireless microcontroller from the STM32WL series, manufactured by STMicroelectronics. It features an ARM Cortex-M4 core operating at up to 48 MHz. The device includes 128 Kbytes of Flash memory and supports multiple modulation schemes including LoRa, (G)FSK, (G)MSK, and BPSK. It operates within a voltage range of 1.8 V to 3.6 V and an industrial temperature range of -40 °C to +85 °C for radio applications.

RF Transceiver ICS Feature Summary

• Integrates a high-performance ARM Cortex-M4 32-bit RISC kernel with DSP instructions and Memory Protection Unit.
• Supports Sub-GHz LPWAN standards with LoRa and standard FSK/MSK/BPSK modulation capabilities.
• Includes comprehensive analog peripherals such as a 12-bit ADC, 12-bit DAC, and low-power comparators.
• Features robust security mechanisms including AES-256 encryption and flash read/write protection.

RF Transceiver ICS Applications

• Long-range IoT sensor nodes
• Smart metering systems
• Industrial telemetry

RF Transceiver ICS Procurement Notes

Verify the specific suffix U6 indicates the tape and reel packaging configuration when ordering. Confirm the operating temperature grade matches the application requirement of -40 °C to +85 °C. Ensure the design accounts for the 1.8 V to 3.6 V supply voltage constraints. Cross-reference the datasheet for exact pinout and package dimensions prior to PCB layout finalization.

RF Transceiver ICS Selection Notes

Select this component for designs requiring integrated Sub-GHz connectivity with low power consumption. The STM32WLE4CBU6 is suitable where LoRa modulation is required alongside standard FSK options. Consider the 128 KB Flash capacity against application firmware size requirements. Evaluate the need for the specific surface-mount package availability in production volumes.

RF Transceiver ICS Part Context

This part belongs to the STM32WL family, designed for ultra-low-power wireless applications. It combines an Arm Cortex-M4 processor with a dual-core Arm Cortex-M0+ for efficient task management. The series targets LPWAN markets, offering a balance of processing power and RF performance in a compact form factor.

RF Transceiver ICS Replacement Considerations

Check for STM32WLE4CBT6 or STM32WLE4CBV6 if different packaging or temperature grades are needed. Verify compatibility with STM32WLE5xx series if LoRa modulation is not strictly required but higher memory is desired.

RF Transceiver ICS FAQ

Does the STM32WLE4CBU6 support LoRa modulation?

Yes, the STM32WLE4CBU6 supports LoRa modulation along with (G)FSK, (G)MSK, and BPSK.

What is the maximum operating frequency of the CPU?

The ARM Cortex-M4 core operates at a maximum frequency of 48 MHz.