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STM32WL55JC

STM32WL55JC

STMicroelectronics
Higher-feature MCU+sub-GHz radio in the same STM32WL family for more flash/performance headroom.
Active2,880 in stock
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Overview

The STM32WL55JC is a system-on-chip (SoC) combining an Arm Cortex-M4 and Cortex-M0+ microcontroller with a sub-GHz radio, making it ideal for LoRaWAN and Sigfox applications. This integration simplifies designs for compact and power-efficient long-range wireless solutions. With 256kB of Flash and 64kB of RAM, it offers ample memory for complex firmware.

Why Choose This Part

This SoC offers a dual-core Arm Cortex-M4 and Cortex-M0+ architecture, providing processing flexibility and power optimization. Its integrated sub-GHz radio supports multiple modulations including LoRaWAN and Sigfox, simplifying RF design and certification. Hardware encryption (AES 256-bit) and a true random number generator enhance security for connected applications.

Applications

LoRaWAN End Devices
Develop energy-efficient and secure end nodes for LoRaWAN networks, leveraging the integrated radio and crypto features.
Sigfox Transceivers
Implement Sigfox-compatible devices for low-power, long-range communication in IoT deployments.
Smart City Infrastructure
Create connected sensors and control units for smart city applications like utility metering and environmental monitoring.
Industrial IoT Sensors
Design robust and low-power wireless sensors for industrial monitoring and asset tracking over long distances.
Agricultural Monitoring
Deploy remote sensors for soil moisture, temperature, and other agricultural parameters with extended battery life.

Key Specifications

GPIO 43
Type TxRx + MCU
Protocol LoRaWAN 1.0, Sigfox
Frequency 150MHz ~ 960MHz
Modulation BPSK, GFSK, GMSK, FSK, MSK
Memory Size 256kB Flash
Sensitivity -148dBm
Mounting Type Surface Mount
Package / Case 73-UFBGA
Power - Output 22dBm
Data Rate (Max) 300kbps
Voltage - Supply 1.8V ~ 3.6V
Serial Interfaces ADC, GPIO, I2C, SPI, IrDA, UART, USART
RF Family/Standard 802.15.4
Current - Receiving 4.82mA
Operating Temperature -40degC ~ 85degC (TA)
Current - Transmitting 21mA ~ 120mA
Supplier Device Package 73-UFBGA (5x5)

Getting Started

STMicroelectronics provides comprehensive development tools, including the STM32CubeIDE, which supports this device. Evaluation boards like the NUCLEO-WL55JC offer an excellent starting point for development. Utilize the STM32CubeMX tool for easy configuration and code generation.

STM32WL55 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number GPIO Package Stock
STM32WL55JC (this part) 43 UFBGA-73 2,880
STM32WL55CCU6 29 UFQFN-48 1,161
Also available as: STM32WL55JCY6TR
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