STM32WL55CCU7

RF Transceiver ICS Overview

The STM32WL55CCU7 is a Sub-GHz wireless microcontroller from STMicroelectronics, featuring a dual-core architecture with Arm Cortex-M4 and Cortex-M0+ processors operating at up to 48 MHz. It integrates 256 Kbytes of Flash memory and 64 Kbytes of SRAM. The device supports multiprotocol LPWAN communications including LoRa, (G)FSK, (G)MSK, and BPSK modulations within the 150 MHz to 960 MHz frequency range. Key specifications include a 32-bit data bus width, 12-bit ADC resolution, and an operating temperature range from -40°C to 105°C.

RF Transceiver ICS Feature Summary

• Dual-core processing capability combining high-performance Arm Cortex-M4 and ultra-low-power Arm Cortex-M0+ cores for efficient task separation.
• Integrated Sub-GHz radio supporting multiple modulation schemes including LoRa, (G)FSK, (G)MSK, and BPSK for versatile long-range communication.
• Embedded security features including AES-256 encryption, secure boot entry, and protection mechanisms for embedded Flash and SRAM.
• Comprehensive peripheral set including 12-bit ADC, 12-bit DAC, low-power RTC, and multiple timers for sensor interfacing and control.

RF Transceiver ICS Applications

• Long-range IoT sensor nodes requiring low power consumption
• Smart home and building automation systems
• Industrial monitoring and control applications
• Agricultural and environmental sensing networks

RF Transceiver ICS Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to soldering. Ensure storage conditions meet humidity requirements to prevent package damage. Cross-reference datasheet revisions to confirm pinout and electrical characteristics match design specifications.

RF Transceiver ICS Selection Notes

Select this component when multiprotocol Sub-GHz connectivity is required alongside robust local processing. The dual-core architecture allows separation of real-time radio tasks from application logic. Consider the 256 KB Flash and 64 KB SRAM capacity for complex firmware requirements. Evaluate thermal performance within the specified -40°C to 105°C range for industrial environments.

RF Transceiver ICS Part Context

This part belongs to the STM32WL55/54xx series of long-range wireless microcontrollers. It is designed for extremely low-power LPWAN-compliant applications. The series emphasizes security and versatility in wireless communication protocols. It complements other STM32 families by focusing on integrated RF capabilities rather than pure computational density.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official STMicroelectronics resources for cross-referencing alternatives based on specific pin compatibility and feature requirements.