STM32WL55JCI6TR

RF Transceiver ICS Overview

The STM32WL55JCI6TR is a Sub-GHz wireless microcontroller featuring a dual-core Arm Cortex-M4/M0+ architecture with a maximum operating frequency of 48 MHz. It integrates 256 Kbytes of Flash memory and 64 Kbytes of SRAM. The device supports LoRa, (G)FSK, (G)MSK, and BPSK modulation schemes within the 150MHz to 960MHz frequency range. Key electrical parameters include a supply voltage range of 1.8V to 3.6V, receive current of 4.82mA, and transmit current ranging from 21mA to 120mA. It offers a maximum data rate of 300kbps, an output power of 22dBm, and a sensitivity of -148dBm.

RF Transceiver ICS Feature Summary

• Dual-core processing combining high-performance Arm Cortex-M4 and low-power Arm Cortex-M0+ cores for efficient task management.
• Integrated Sub-GHz radio supporting multiple LPWAN protocols including LoRa, Sigfox, and IEEE 802.15.4 standards.
• Comprehensive security features including AES-256 encryption engine and independent Memory Protection Units on both cores.

RF Transceiver ICS Applications

• Long Range (LoRa) sensor nodes for industrial monitoring
• Smart metering infrastructure for utility networks
• Wireless alarm systems and home automation devices

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing components. Confirm that the ordering part number matches the exact pinout and package dimensions required for the PCB layout. Ensure compatibility with the intended firmware environment, as the dual-core architecture requires specific initialization sequences for inter-core communication.

RF Transceiver ICS Selection Notes

Select this component for designs requiring simultaneous support for multiple wireless standards such as LoRa and Zigbee/Thread. The dual-core structure allows separating real-time radio tasks on the M0+ core from application logic on the M4 core. Consider the 22dBm output power for extended range requirements and verify thermal dissipation capabilities given the UFBGA package constraints.

RF Transceiver ICS Part Context

This part belongs to the STM32WL series, designed specifically for ultra-low-power IoT applications. It differentiates itself by integrating both Sub-GHz and 2.4GHz radio capabilities in some variants, though this specific model focuses on Sub-GHz operations. It serves as a bridge between simple microcontrollers and complex SoCs, offering dedicated hardware acceleration for cryptographic and radio protocols.

RF Transceiver ICS Replacement Considerations

STM32WL55JCU6TR: Offers identical specifications but in a different package variant. STM32WLE5JCI6: Provides similar functionality with reduced Flash memory capacity (64KB). STM32WL54JCI6TR: Features lower memory sizes while maintaining the same radio and core architecture.